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Earth is the third planet from the Sun and the densest of the terrestrial planets. It is the only known place where life exists, and life first appeared on Earth around 4.54 billion years ago. The proliferation of life has significantly altered Earth's atmosphere and conditions, enabling the formation of an ozone layer that shields life from solar radiation and allows life to exist on land.
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Earth (or the Earth) is the third planet from the Sun and the densest and
fifth-largest of the eight planets in the Solar System. It is also the largest
of the Solar System's four terrestrial planets. It is sometimes referred to
as the World, the Blue Planet, or by its Latin name, Terra.]
Home to millions of species including humans, Earth is currently the only
astronomical body where life is known to exist. The planet formed 4.54
billion years ago, and life appeared on its surface within a billion years.
Earth's biosphere has significantly altered the atmosphere and other
abiotic conditions on the planet, enabling the proliferation of aerobic
organisms as well as the formation of the ozone layer which, together
with Earth's magnetic field, blocks harmful solar radiation, permitting life
on land. The physical properties of the Earth, as well as its geological
history and orbit, have allowed life to persist during this period. The
planet is expected to continue supporting life for at least another 500
million years.](https://image.slidesharecdn.com/2-110331044143-phpapp02/85/2-1-320.jpg)
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ээлжит хичээлийн хэрэглэгдхүүн
The Earth is the third planet from the Sun and the densest and fifth-largest planet in the Solar System. Life first appeared on Earth around 4 billion years ago and has significantly altered the atmosphere and conditions on the planet. The physical properties and geological history of the Earth have allowed life to persist for over 500 million years.
Jupiter
Jupiter is the largest planet in our solar system, with a diameter over 140,000 km. It has 67 known moons and an atmosphere composed mainly of hydrogen and helium. Life as we know it is unlikely on Jupiter due to its lack of a solid surface and extreme atmospheric pressures.
Major domains of the earth
The document discusses the major domains of Earth - the lithosphere, hydrosphere, atmosphere, and biosphere. It provides details about each domain:
1) The lithosphere is the solid portion of Earth and includes rocks and soil. It is divided into continents and ocean basins.
2) The hydrosphere includes all water on Earth in its solid, liquid, and gas forms, covering over 70% of the planet. The four major oceans are identified.
3) The atmosphere surrounds Earth and is composed mainly of nitrogen and oxygen. It is divided into layers by temperature and composition.
4) The biosphere is the narrow zone where life exists, encompassing interactions between the lithosphere
Earth is the third planet from the sun and the only astronomical object known...
Earth is the third planet from the Sun and the only place known to support life. Around 29% of Earth's surface is land consisting of continents and islands, while the remaining 71% is covered by oceans, seas, lakes and rivers. Earth's outer layer is made up of tectonic plates that migrate over millions of years, and its interior remains active with a solid iron core and convecting mantle. Earth's atmosphere consists mainly of nitrogen and oxygen, and greenhouse gases play an important role in regulating surface temperatures. The Moon stabilizes Earth's orientation and causes ocean tides, and Earth orbits the Sun in 365 days. Life first appeared on Earth over 4 billion years ago and has since evolved into many species, though
planet earth
Earth orbits the sun at around 110,000 kmph, is about 150 million km away from the sun, and has a diameter of around 12,756 km. It has one moon called Luna and formed 4.54 billion years ago. Earth is the only known planet capable of sustaining life, and its future is closely tied to that of the sun. It is a terrestrial rocky planet compared to gas giants like Jupiter.
About the Blue Planet, Earth
The document provides information on several topics related to Earth:
1) Earth is often called the "blue planet" because it appears blue from space and 70% of its surface is covered in water.
2) Earth has four main layers from the center out - the inner core, outer core, mantle, and crust. The mantle makes up 85% of Earth's mass.
3) The seven continents formed from the breaking apart of the supercontinent Pangaea, ranging in size from largest Asia to smallest Australia.
4) The two main movements of Earth are its rotation on its axis, which causes day and night, and its revolution around the sun, which causes the seasons.
Realms of the earth
The document describes four major spheres of Earth - the atmosphere, lithosphere, hydrosphere, and biosphere. It provides details about each sphere, including that the atmosphere contains a mixture of gases surrounding Earth, the lithosphere forms Earth's thin crust, the hydrosphere includes the oceans covering 71% of the surface, and the biosphere is the realm where all living organisms exist in interaction with the other spheres.
Our Planet Earth-Realms
The Earth's surface consists of both land and water. A blanket of air surrounding the Earth. it is inhabited of living organisms, both plants and animals. All these elements-land, water, air and living organisms make up the realms of Earth-Lithosphere, Hydrosphere, Atmosphere and Biosphere.
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ээлжит хичээлийн хэрэглэгдхүүн
The Earth is the third planet from the Sun and the densest and fifth-largest planet in the Solar System. Life first appeared on Earth around 4 billion years ago and has significantly altered the atmosphere and conditions on the planet. The physical properties and geological history of the Earth have allowed life to persist for over 500 million years.
Jupiter
Jupiter is the largest planet in our solar system, with a diameter over 140,000 km. It has 67 known moons and an atmosphere composed mainly of hydrogen and helium. Life as we know it is unlikely on Jupiter due to its lack of a solid surface and extreme atmospheric pressures.
Major domains of the earth
The document discusses the major domains of Earth - the lithosphere, hydrosphere, atmosphere, and biosphere. It provides details about each domain:
1) The lithosphere is the solid portion of Earth and includes rocks and soil. It is divided into continents and ocean basins.
2) The hydrosphere includes all water on Earth in its solid, liquid, and gas forms, covering over 70% of the planet. The four major oceans are identified.
3) The atmosphere surrounds Earth and is composed mainly of nitrogen and oxygen. It is divided into layers by temperature and composition.
4) The biosphere is the narrow zone where life exists, encompassing interactions between the lithosphere
Earth is the third planet from the sun and the only astronomical object known...
Earth is the third planet from the Sun and the only place known to support life. Around 29% of Earth's surface is land consisting of continents and islands, while the remaining 71% is covered by oceans, seas, lakes and rivers. Earth's outer layer is made up of tectonic plates that migrate over millions of years, and its interior remains active with a solid iron core and convecting mantle. Earth's atmosphere consists mainly of nitrogen and oxygen, and greenhouse gases play an important role in regulating surface temperatures. The Moon stabilizes Earth's orientation and causes ocean tides, and Earth orbits the Sun in 365 days. Life first appeared on Earth over 4 billion years ago and has since evolved into many species, though
planet earth
Earth orbits the sun at around 110,000 kmph, is about 150 million km away from the sun, and has a diameter of around 12,756 km. It has one moon called Luna and formed 4.54 billion years ago. Earth is the only known planet capable of sustaining life, and its future is closely tied to that of the sun. It is a terrestrial rocky planet compared to gas giants like Jupiter.
About the Blue Planet, Earth
The document provides information on several topics related to Earth:
1) Earth is often called the "blue planet" because it appears blue from space and 70% of its surface is covered in water.
2) Earth has four main layers from the center out - the inner core, outer core, mantle, and crust. The mantle makes up 85% of Earth's mass.
3) The seven continents formed from the breaking apart of the supercontinent Pangaea, ranging in size from largest Asia to smallest Australia.
4) The two main movements of Earth are its rotation on its axis, which causes day and night, and its revolution around the sun, which causes the seasons.
Realms of the earth
The document describes four major spheres of Earth - the atmosphere, lithosphere, hydrosphere, and biosphere. It provides details about each sphere, including that the atmosphere contains a mixture of gases surrounding Earth, the lithosphere forms Earth's thin crust, the hydrosphere includes the oceans covering 71% of the surface, and the biosphere is the realm where all living organisms exist in interaction with the other spheres.
Our Planet Earth-Realms
The Earth's surface consists of both land and water. A blanket of air surrounding the Earth. it is inhabited of living organisms, both plants and animals. All these elements-land, water, air and living organisms make up the realms of Earth-Lithosphere, Hydrosphere, Atmosphere and Biosphere.
A View Of Earth
An introductory presentation that presents the four spheres of the Earth, as well as the Earth's four zones: lithosphere, asthenosphere, outer core, and inner core. Developed for a high school Earth Science course.
The hubble by Miguel Casas
The sun is at the center of the solar system and is the primary energy source for life on Earth. It is about 109 times the diameter of Earth and has remained stable for the past 4 billion years and is expected to remain stable for another 4 billion years. The moon is one of the largest natural satellites in the solar system and formed approximately 4.5 billion years ago shortly after Earth. The moon's gravity causes ocean tides on Earth. Earth is the third planet from the sun, formed about 4.54 billion years ago, and is the only known planet that supports life. Life first appeared in Earth's oceans and 71% of Earth's surface is covered with water.
major domains of earth
The document discusses the four spheres or realms of Earth: the atmosphere, lithosphere, hydrosphere, and biosphere. The atmosphere is the gaseous layer surrounding Earth that redistributes heat and moisture. The lithosphere is the outer solid layer that provides a platform for life. The hydrosphere is principally the oceans but also includes ice. Most of the biosphere exists within the top 100 meters of the oceans and land surface.
Ppt earth - our responsibility revised
This document discusses the formation of Earth and the impact of humans on the environment. It describes how dust and rocks pulled together billions of years ago to form planets, and how Earth developed an atmosphere and life over billions of more years. However, it notes that human activities like pollution, deforestation, and habitat destruction are now degrading the environment and endangering species. The document urges humans to pledge to protect the Earth and learn ways to restore lands that have been degraded.
Physical Environment Of The World
The document provides information about the Earth and the solar system. It discusses the seven continents that make up the Earth. It describes the eight planets in our solar system and some key facts about each. It also summarizes the shape of the Earth, the lines of latitude and longitude that circle the globe, and how the Earth's rotation creates different time zones. The layers of the Earth's interior and atmosphere are defined. The atmosphere section identifies the five layers - troposphere, stratosphere, mesosphere, thermosphere, and exosphere - and provides some details about each.
Spheres of the earth
The document describes the four main spheres that make up Earth: the atmosphere, geosphere, hydrosphere, and biosphere.
The atmosphere is the layer of gases surrounding Earth, including oxygen, nitrogen, and other gases. The geosphere is the solid layer of Earth, including the continents and ocean floor. The hydrosphere consists of all water on Earth, found as liquid in oceans and ice, and as gas in the atmosphere. The biosphere is made up of all living things on Earth.
Life On Planet Earth
The document discusses ecosystems and the components that make up Earth's biosphere. It describes the atmosphere, lithosphere, and hydrosphere. The atmosphere protects the planet and regulates temperatures. The lithosphere is Earth's solid outer layer made of rock and minerals. The hydrosphere contains all of Earth's water, including oceans, lakes, ice, and groundwater. Living things exist within these areas in the biosphere, which is a thin layer supporting life. Ecosystems are defined as communities of interacting living and nonliving things in a certain area.
Earth's spheres
The document discusses the four interconnected spheres that make up Earth's systems - the geosphere (solid Earth), hydrosphere (water), atmosphere (air), and biosphere (living things). It notes that the Earth is a complex system of interacting rock, water, air and life and provides an example of how a sewage overflow during a storm can impact all four spheres through their interactions.
Earth’s spheres
The document summarizes the three main spheres of Earth - the atmosphere, hydrosphere, and lithosphere. The atmosphere is the thin envelope of gas, liquids, and solids surrounding Earth, held in place by gravity. It is stratified into zones with different characteristics, including the troposphere, stratosphere, mesosphere, and thermosphere. The hydrosphere covers 3/4 of Earth's surface and includes all bodies of water. The lithosphere is the most solid and continuous part of Earth, made of rock near the surface, including under the hydrosphere and accounting for mountains and faults.
The Blue Planet- Earth
Earth is the third planet from the Sun and the only known planet to harbor life. It is called the Earth, meaning ground, in English and German, as well as the blue planet due to its abundant water and atmospheric hue. Wind carries over 100 million tons of sand grains around the world each year and Antarctica is the coldest place on Earth as the entire continent is made of ice.
Summary 0f the earth system, origin...
The document discusses the structure and components of the Earth system. It states that the Earth can be considered a closed system that receives energy from the Sun and exchanges heat with space. It also notes that the universe is around 13.8 billion years old and the diameter of the observable universe is at least 91 billion light years. The Earth system consists of four main interacting subsystems: the lithosphere, hydrosphere, atmosphere, and biosphere. Materials cycle continuously between these subsystems, such as in the carbon, rock, and water cycles. The subsystems also receive and redistribute energy, with the main external energy source being the Sun and internal sources being radioactive decay and gravitational energy.
2 spheres of the_earth
Here are the answers to your questions:
1. The different spheres of Earth are: Atmosphere, Biosphere, Hydrosphere, Lithosphere, Anthrosphere.
2. Atmosphere is the envelope of air surrounding the Earth. It has four main layers - Troposphere, Stratosphere, Mesosphere, Thermosphere. Troposphere is where we live. Stratosphere contains ozone layer which protects us from UV rays.
3. Biosphere refers to the parts of Earth where life exists, including all living things, their remains, and the area where environmental conditions allow life. It includes all ecosystems and living organisms.
4. Hydrosphere includes all water on Earth like oceans
U3L1 - Earth's Spheres
The document describes Earth's spheres which include:
- The geosphere (solid rocky part including crust and mantle)
- Hydrosphere (liquid water parts like oceans and rivers)
- Cryosphere (frozen water parts like ice and glaciers)
- Atmosphere (mixture of gases surrounding Earth)
- Biosphere (area where living things exist)
It explains that matter and energy constantly cycle between these spheres, and their interactions are essential for life on Earth. The spheres work together as a complex, interconnected system.
Shells of Earth
The document discusses the four main spheres that make up Earth's systems - the lithosphere, hydrosphere, atmosphere, and biosphere. It describes each sphere and how they interact with each other. The lithosphere is the solid rocky parts of Earth. The hydrosphere contains Earth's water. The atmosphere is the envelope of air surrounding Earth. The biosphere contains all of Earth's living things. Together, these four spheres interact to form complex Earth systems that sustain life.
ppt on all domains of the earth
This document provides an overview of key concepts in physical geography, including the four realms of the Earth (atmosphere, lithosphere, hydrosphere, biosphere), scales in physical geography from global to individual, systems like flow and feedback systems, and definitions of weather and climate. It discusses how physical geography examines natural processes on Earth's surface and their interaction with human activities.
Social & Science PPT
This document provides a summary of key topics from a social science presentation, including:
- The lithosphere refers to the hard, rocky surface of Earth including the land masses.
- The large land masses above sea level are called continents, of which there are seven.
- Oceans are vast stretches of water that extend thousands of kilometers, with five major oceans.
- The biosphere includes the lithosphere, hydrosphere, and atmosphere, collectively known as the living world.
Planet Earth
The document discusses the key components that make Earth habitable for life. It describes Earth's lithosphere, hydrosphere, and atmosphere and how they interact with living organisms. The non-living components provide necessary elements for life like liquid water, stable temperatures, and gases used in respiration and photosynthesis. Together the interactions between living and non-living parts make up the complex network of Earth's biosphere that sustains life.
Earth's Spheres
The document discusses Earth's spheres which include the atmosphere, hydrosphere, lithosphere, biosphere, cryosphere, and anthroposphere. It explains that the spheres are closely interconnected, with changes in one sphere often causing chain reactions and changes in other spheres. An example is provided of a forest fire destroying plants, which leads to erosion, increased soil in water, higher turbidity, and impacts on water plants and animals, demonstrating the interactions between spheres.
The 4 Spheres
The document discusses the four main spheres that make up the Earth's systems - the atmosphere, biosphere, lithosphere, and hydrosphere. It aims to define each sphere and explain how they interact with each other. For example, it notes that volcanoes erupt, sending ash and gases into the atmosphere and biosphere. The document also provides definitions for key terms like weather, climate, and the layers of the atmosphere.
The earth conrado ignacio y juan
The Earth is the third planet from the Sun, with a diameter of 7,926 miles and an equator circumference of 24,901 miles. It takes its name from the Greek goddess Gaea or Gaia, and has layers including a crust, mantle, outer core and inner core. About 30% of the Earth's surface is land while 70% is oceans, and it has one moon called Luna that provides stability to our planet, which maintains conditions like temperature and atmosphere that have allowed life to thrive.
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A View Of Earth
An introductory presentation that presents the four spheres of the Earth, as well as the Earth's four zones: lithosphere, asthenosphere, outer core, and inner core. Developed for a high school Earth Science course.
The hubble by Miguel Casas
The sun is at the center of the solar system and is the primary energy source for life on Earth. It is about 109 times the diameter of Earth and has remained stable for the past 4 billion years and is expected to remain stable for another 4 billion years. The moon is one of the largest natural satellites in the solar system and formed approximately 4.5 billion years ago shortly after Earth. The moon's gravity causes ocean tides on Earth. Earth is the third planet from the sun, formed about 4.54 billion years ago, and is the only known planet that supports life. Life first appeared in Earth's oceans and 71% of Earth's surface is covered with water.
major domains of earth
The document discusses the four spheres or realms of Earth: the atmosphere, lithosphere, hydrosphere, and biosphere. The atmosphere is the gaseous layer surrounding Earth that redistributes heat and moisture. The lithosphere is the outer solid layer that provides a platform for life. The hydrosphere is principally the oceans but also includes ice. Most of the biosphere exists within the top 100 meters of the oceans and land surface.
Ppt earth - our responsibility revised
This document discusses the formation of Earth and the impact of humans on the environment. It describes how dust and rocks pulled together billions of years ago to form planets, and how Earth developed an atmosphere and life over billions of more years. However, it notes that human activities like pollution, deforestation, and habitat destruction are now degrading the environment and endangering species. The document urges humans to pledge to protect the Earth and learn ways to restore lands that have been degraded.
Physical Environment Of The World
The document provides information about the Earth and the solar system. It discusses the seven continents that make up the Earth. It describes the eight planets in our solar system and some key facts about each. It also summarizes the shape of the Earth, the lines of latitude and longitude that circle the globe, and how the Earth's rotation creates different time zones. The layers of the Earth's interior and atmosphere are defined. The atmosphere section identifies the five layers - troposphere, stratosphere, mesosphere, thermosphere, and exosphere - and provides some details about each.
Spheres of the earth
The document describes the four main spheres that make up Earth: the atmosphere, geosphere, hydrosphere, and biosphere.
The atmosphere is the layer of gases surrounding Earth, including oxygen, nitrogen, and other gases. The geosphere is the solid layer of Earth, including the continents and ocean floor. The hydrosphere consists of all water on Earth, found as liquid in oceans and ice, and as gas in the atmosphere. The biosphere is made up of all living things on Earth.
Life On Planet Earth
The document discusses ecosystems and the components that make up Earth's biosphere. It describes the atmosphere, lithosphere, and hydrosphere. The atmosphere protects the planet and regulates temperatures. The lithosphere is Earth's solid outer layer made of rock and minerals. The hydrosphere contains all of Earth's water, including oceans, lakes, ice, and groundwater. Living things exist within these areas in the biosphere, which is a thin layer supporting life. Ecosystems are defined as communities of interacting living and nonliving things in a certain area.
Earth's spheres
The document discusses the four interconnected spheres that make up Earth's systems - the geosphere (solid Earth), hydrosphere (water), atmosphere (air), and biosphere (living things). It notes that the Earth is a complex system of interacting rock, water, air and life and provides an example of how a sewage overflow during a storm can impact all four spheres through their interactions.
Earth’s spheres
The document summarizes the three main spheres of Earth - the atmosphere, hydrosphere, and lithosphere. The atmosphere is the thin envelope of gas, liquids, and solids surrounding Earth, held in place by gravity. It is stratified into zones with different characteristics, including the troposphere, stratosphere, mesosphere, and thermosphere. The hydrosphere covers 3/4 of Earth's surface and includes all bodies of water. The lithosphere is the most solid and continuous part of Earth, made of rock near the surface, including under the hydrosphere and accounting for mountains and faults.
The Blue Planet- Earth
Earth is the third planet from the Sun and the only known planet to harbor life. It is called the Earth, meaning ground, in English and German, as well as the blue planet due to its abundant water and atmospheric hue. Wind carries over 100 million tons of sand grains around the world each year and Antarctica is the coldest place on Earth as the entire continent is made of ice.
Summary 0f the earth system, origin...
The document discusses the structure and components of the Earth system. It states that the Earth can be considered a closed system that receives energy from the Sun and exchanges heat with space. It also notes that the universe is around 13.8 billion years old and the diameter of the observable universe is at least 91 billion light years. The Earth system consists of four main interacting subsystems: the lithosphere, hydrosphere, atmosphere, and biosphere. Materials cycle continuously between these subsystems, such as in the carbon, rock, and water cycles. The subsystems also receive and redistribute energy, with the main external energy source being the Sun and internal sources being radioactive decay and gravitational energy.
2 spheres of the_earth
Here are the answers to your questions:
1. The different spheres of Earth are: Atmosphere, Biosphere, Hydrosphere, Lithosphere, Anthrosphere.
2. Atmosphere is the envelope of air surrounding the Earth. It has four main layers - Troposphere, Stratosphere, Mesosphere, Thermosphere. Troposphere is where we live. Stratosphere contains ozone layer which protects us from UV rays.
3. Biosphere refers to the parts of Earth where life exists, including all living things, their remains, and the area where environmental conditions allow life. It includes all ecosystems and living organisms.
4. Hydrosphere includes all water on Earth like oceans
U3L1 - Earth's Spheres
The document describes Earth's spheres which include:
- The geosphere (solid rocky part including crust and mantle)
- Hydrosphere (liquid water parts like oceans and rivers)
- Cryosphere (frozen water parts like ice and glaciers)
- Atmosphere (mixture of gases surrounding Earth)
- Biosphere (area where living things exist)
It explains that matter and energy constantly cycle between these spheres, and their interactions are essential for life on Earth. The spheres work together as a complex, interconnected system.
Shells of Earth
The document discusses the four main spheres that make up Earth's systems - the lithosphere, hydrosphere, atmosphere, and biosphere. It describes each sphere and how they interact with each other. The lithosphere is the solid rocky parts of Earth. The hydrosphere contains Earth's water. The atmosphere is the envelope of air surrounding Earth. The biosphere contains all of Earth's living things. Together, these four spheres interact to form complex Earth systems that sustain life.
ppt on all domains of the earth
This document provides an overview of key concepts in physical geography, including the four realms of the Earth (atmosphere, lithosphere, hydrosphere, biosphere), scales in physical geography from global to individual, systems like flow and feedback systems, and definitions of weather and climate. It discusses how physical geography examines natural processes on Earth's surface and their interaction with human activities.
Social & Science PPT
This document provides a summary of key topics from a social science presentation, including:
- The lithosphere refers to the hard, rocky surface of Earth including the land masses.
- The large land masses above sea level are called continents, of which there are seven.
- Oceans are vast stretches of water that extend thousands of kilometers, with five major oceans.
- The biosphere includes the lithosphere, hydrosphere, and atmosphere, collectively known as the living world.
Planet Earth
The document discusses the key components that make Earth habitable for life. It describes Earth's lithosphere, hydrosphere, and atmosphere and how they interact with living organisms. The non-living components provide necessary elements for life like liquid water, stable temperatures, and gases used in respiration and photosynthesis. Together the interactions between living and non-living parts make up the complex network of Earth's biosphere that sustains life.
Earth's Spheres
The document discusses Earth's spheres which include the atmosphere, hydrosphere, lithosphere, biosphere, cryosphere, and anthroposphere. It explains that the spheres are closely interconnected, with changes in one sphere often causing chain reactions and changes in other spheres. An example is provided of a forest fire destroying plants, which leads to erosion, increased soil in water, higher turbidity, and impacts on water plants and animals, demonstrating the interactions between spheres.
The 4 Spheres
The document discusses the four main spheres that make up the Earth's systems - the atmosphere, biosphere, lithosphere, and hydrosphere. It aims to define each sphere and explain how they interact with each other. For example, it notes that volcanoes erupt, sending ash and gases into the atmosphere and biosphere. The document also provides definitions for key terms like weather, climate, and the layers of the atmosphere.
The earth conrado ignacio y juan
The Earth is the third planet from the Sun, with a diameter of 7,926 miles and an equator circumference of 24,901 miles. It takes its name from the Greek goddess Gaea or Gaia, and has layers including a crust, mantle, outer core and inner core. About 30% of the Earth's surface is land while 70% is oceans, and it has one moon called Luna that provides stability to our planet, which maintains conditions like temperature and atmosphere that have allowed life to thrive.
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how many people are on this planet earth?
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Earth, also known as the world, Terra, or Gaia, is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System\'s four terrestrial planets, and the only celestial body known to accommodate life. It is home to about 8.74 million species. There are over 7.2 billion humans who depend upon its biosphere and minerals. The Earth\'s human population is divided among about two hundred independent states that interact through diplomacy, conflict, travel, trade, and media. According to evidence from sources such as radiometric dating, Earth was formed around four and a half billion years ago. Within its first billion years, life appeared in its oceans and began to affect its atmosphere and surface, promoting the proliferation of aerobic as well as anaerobic organisms and causing the formation of the atmosphere\'s ozone layer. This layer and Earth\'s magnetic field block the most life-threatening parts of the Sun\'s radiation, so life was able to flourish on land as well as in water. Since then, Earth\'s position in the Solar System, its physical properties and its geological history have allowed life to persist
.
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The Earth has undergone constant change over its 4.54 billion year history, with life evolving in response. There have been at least 8 mass extinction events that have significantly impacted life on the planet. Life continues to spread and adapt wherever viable conditions allow. The four spheres that make up the structure of the Earth are the biosphere, hydrosphere, lithosphere, and atmosphere. The layers of the atmosphere include the troposphere, stratosphere, mesosphere, and thermosphere. Steps that can be taken to help save the Earth include conserving water and the environment, celebrating Earth Day, planting trees, and following a reduce, reuse, recycle mantra.
History of the Earth.pptx
The document provides a summary of the history of Earth from its formation to the present day. It describes how Earth formed around 4.54 billion years ago from a solar nebula, and over time developed a solid crust and liquid water on its surface. Early life first appeared between 3.5 to 4 billion years ago in the form of microbes like bacteria and stromatolites. The first complex multicellular organisms emerged around 580 million years ago in an event known as the Cambrian explosion, marking the rise of most major phyla. Life has continued to evolve on Earth, with species adapting and going extinct over geological eras as environments changed.
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The Moon is a relatively large, terrestrial, planet-like natural satellite, with a diameter about one-quarter of Earth's. It is the largest moon in the Solar System relative to the size of its planet, although Charon is larger relative to the dwarf planet Pluto. The natural satellites of other planets are also referred to as "moons", after Earth's.
The gravitational attraction between Earth and the Moon causes tides on Earth. The same effect on the Moon has led to its tidal locking: its rotation period is the same as the time it takes to orbit Earth. As a result, it always presents the same face to the planet. As the Moon orbits Earth, different parts of its face are illuminated by the Sun, leading to the lunar phases; the dark part of the face is separated from the light part by the solar terminator.
Details of the Earth–Moon system, showing the radius of each object and the Earth–Moon barycenter. The Moon's axis is located by Cassini's third law.
Due to their tidal interaction, the Moon recedes from Earth at the rate of approximately 38 mm/yr. Over millions of years, these tiny modifications—and the lengthening of Earth's day by about 23 µs/yr—add up to significant changes.[221] During the Devonian period, for example, (approximately 410 Mya) there were 400 days in a year, with each day lasting 21.8 hours.[222]
The Moon may have dramatically affected the development of life by moderating the planet's climate. Paleontological evidence and computer simulations show that Earth's axial tilt is stabilized by tidal interactions with the Moon.[28] Some theorists think that without this stabilization against the torques applied by the Sun and planets to Earth's equatorial bulge, the rotational axis might be chaotically unstable, exhibiting chaotic changes over millions of years, as appears to be the case for Mars.[223]
Viewed from Earth, the Moon is just far enough away to have almost the same apparent-sized disk as the Sun. The angular size (or solid angle) of these two bodies match because, although the Sun's diameter is about 400 times as large as the Moon's, it is also 400 times more distant.[186] This allows total and annular solar eclipses to occur on Earth.
The most widely accepted theory of the Moon's origin, the giant-impact hypothesis, states that it formed from the collision of a Mars-size protoplanet called Theia with the early Earth. This hypothesis explains (among other things) the Moon's relative lack of iron and volatile elements and the fact that its composition is nearly identical to that of Earth's crust.[224]
Earth
Earth is the third planet from the Sun and the only known planet capable of supporting life. It formed over 4 billion years ago and is a terrestrial planet with significant geological activity like plate tectonics. Earth's atmosphere and oceans were formed by outgassing and volcanic activity and water vapor in the atmosphere condensed to form the oceans. Life first appeared on Earth around 3.5 billion years ago and the planet's biosphere has significantly altered conditions on the surface enabling the proliferation of complex life. Earth interacts gravitationally and magnetically with the Moon and Sun.
Moon
The Moon is Earth's only natural satellite and orbits about 384,400 km away. It has a diameter of 3,474.8 km and is tidally locked so the same side always faces Earth. The Moon was formed from debris after a collision between Earth and a Mars-sized object. Its gravitational pull causes ocean tides on Earth and its stabilizing effect on Earth's axis may have enabled the development of complex life.
Origin of ocean basins
The reason for the occurrence of such a huge mass of water on the globe, is still a myth and reality. The reason goes back to the Origin of Earth itself. The exact mode of origin is not precisely known. Scientists assume, both Primary and secondary sources would have given rise to all both air and water on the earth. Two possible sources as internal source (or) external source have been proposed so far. Some of them are attributed towards the theories of origin of the earth.
The Earth
The document summarizes information about the Earth, including:
1) The Earth began forming 4.6 billion years ago from a hot cloud of gas that condensed into billions of droplets and slowly clumped together due to gravity to form the planet.
2) The Earth's core is mostly iron and its crust is made up of oxygen, silicon, and aluminum.
3) A day on Earth lasts 23 hours, 56 minutes, and 4 seconds, known as a sidereal day, and a full year is 365.24 days, necessitating leap years every four years.
Earth and-earthquakes
The document provides an overview of Earth, its atmosphere, and its place in the solar system. It describes Earth's composition, unique characteristics that support life, and ongoing geological changes. It discusses Earth's orbit and rotation, seasons, and atmospheric layers. Recent space exploration has increased understanding of Earth and how it compares to other planets and moons in the solar system.
EARTH IN SOLAR SYSTEM
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal
The Earth
Earth is the third planet from the sun located between Mercury and Venus. It has an atmosphere composed of gases that protects life by blocking harmful radiation and trapping heat. Earth has a diameter of around 8,000 km at the equator and a mass of nearly 6 trillion trillion kg. Earth has one moon that is the fifth largest in the solar system. Earth is unique in our solar system as it supports life and has liquid water.
PLANET-EARTH.pdf
Planet Earth is the third planet in our solar system and the only known planet with life. The Earth is like an onion - it has different layers.
Saturn Essay
Saturn is the second largest planet in the solar system, known for its stunning rings. It has at least 18 moons, more than any other planet. Voyages to Saturn have revealed details about its composition and features, including that its rings are made of ice particles and extend far beyond its moons.
Life On Other Planets. Essay
This document provides a top 10 list of planets in our solar system ranked in order of their distance from the Sun. It gives key details about each planet such as their temperature, potential for life, and whether their composition is solid or gas. The top three planets are Mercury, Venus, and Earth. Mercury is the smallest and has extreme temperature ranges, while Venus is the hottest planet with surface temperatures over 400 degrees Celsius. Earth stands out as the only planet known to host life.
Earth crust and its composition
The document summarizes the composition and structure of the Earth's crust and lithosphere. It is divided into four main layers: the atmosphere, hydrosphere, biosphere, and lithosphere. The lithosphere consists of the Earth's crust and upper mantle. The crust is divided into the lighter continental crust and denser oceanic crust. Below the crust lies the mantle, which is divided into the low-viscosity upper mantle and higher-viscosity lower mantle. The Earth's iron-nickel core lies at the center.
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History and formation of the Earth (Presentation #2 Bilogy L2 project)
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ээлжит хичээлийн хэрэглэгдхүүн 2
- 1. Earth matters Earth (or the Earth) is the third planet from the Sun and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the World, the Blue Planet, or by its Latin name, Terra.] Home to millions of species including humans, Earth is currently the only astronomical body where life is known to exist. The planet formed 4.54 billion years ago, and life appeared on its surface within a billion years. Earth's biosphere has significantly altered the atmosphere and other abiotic conditions on the planet, enabling the proliferation of aerobic organisms as well as the formation of the ozone layer which, together with Earth's magnetic field, blocks harmful solar radiation, permitting life on land. The physical properties of the Earth, as well as its geological history and orbit, have allowed life to persist during this period. The planet is expected to continue supporting life for at least another 500 million years.
- 2. Earth matters The Earth is the third planet, and about 150 million kms from the sun.
- 3. Water and earth Places in the universe Present perfect active (result visible) vs. passive Large numbers Approximately 57,500,000 square miles of the total surface area is land. The Earth has a total surface area of about 197,000,000 square miles. Water covers approximately 139,500,000 square miles.
- 4. Remember Man has made progress. Progress has been made (by man). The lowest temperature of -89*C was recorded at Vostok station Antarctica. The highest temperature on earth was recorded as 58*C in Al Asisiyah in Libya.
- 5. mercury venus moon earth mars Jupiter Saturn uranus