Layers of the atmosphere ppt.pptx
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The document describes the five layers of Earth's atmosphere: 1) The troposphere is the lowest layer where weather occurs and where humans live. 2) The stratosphere is above the troposphere where the ozone layer absorbs UV rays. 3) The mesosphere protects Earth from meteoroids. 4) The ionosphere reflects radio waves for communication. 5) The exosphere is the top layer marking the edge of space with very few molecules.
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Class 7,lesson 4 air, geography
The document discusses the Earth's atmosphere, including its composition and structure. It notes that the atmosphere is composed primarily of nitrogen and oxygen, and also contains trace amounts of other gases like carbon dioxide. The atmosphere is divided into five layers - the troposphere, stratosphere, mesosphere, thermosphere, and exosphere - with the troposphere being the lowest layer where weather occurs and we breathe. Each higher layer extends further from the Earth's surface, with the thermosphere aiding radio transmission and the exosphere being where light gases escape into space.
The EARTH's Atmosphere and major components
The atmosphere is composed of layers of gases that surround Earth and other celestial bodies. It protects the planet from harmful radiation and regulates temperature, providing suitable conditions for life. Earth's atmosphere extends over 500 km high and is made up primarily of nitrogen (78%) and oxygen (21%), with trace amounts of other gases. It has distinct layers including the troposphere where weather occurs, the stratosphere containing the ozone layer that protects from UV rays, the mesosphere which is the coldest layer, the thermosphere with high temperatures from solar absorption, and the exosphere merging with space. Overall, the atmosphere plays a crucial role in maintaining habitable conditions on Earth.
Atmosphere
The document discusses the definition, composition, and structure of the atmosphere. It describes the atmosphere as a gaseous envelope surrounding the Earth composed primarily of nitrogen, oxygen, and trace amounts of other gases. The structure of the atmosphere is divided into six concentric layers - troposphere, stratosphere, mesosphere, thermosphere, exosphere, and magnetosphere - based on variations in temperature with increasing altitude.
composition &structure of atmosphere
The document describes the composition and structure of Earth's atmosphere. It is divided into multiple layers based on chemical composition, thermal properties, and electromagnetic properties. The major layers from lowest to highest are: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer has unique characteristics such as varying temperature profiles and concentrations of different gases. The thermosphere and lower layers contain the ionosphere, where solar radiation ionizes gases to form a region that can reflect radio waves.
Chemistry 2
The document describes the layers of the Earth's atmosphere. It is divided into four main layers: the troposphere, stratosphere, mesosphere, and thermosphere. Each layer has a different temperature and composition. The troposphere is closest to Earth's surface and contains 75-80% of the atmosphere. The stratosphere contains the ozone layer which protects the Earth from UV radiation. The thermosphere is the hottest layer and includes the ionosphere.
24 1 the atmosphere
The atmosphere is composed primarily of nitrogen, oxygen, and other gases that surround the Earth. It protects the Earth from harmful rays from the sun while trapping heat, and provides conditions suitable for life. The atmosphere consists of four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - with decreasing air pressure and density at higher altitudes. The stratosphere contains the ozone layer which absorbs UV rays.
Atmosphere.pptx
The atmosphere can be divided into four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - based on changes in temperature. The troposphere is the lowest layer that contains the air we breathe and where weather occurs. Above that is the stratosphere, which contains a protective layer of ozone. Next is the mesosphere, the coldest layer where temperatures drop down to -100°C. The outermost layer is the thermosphere, where temperatures continually rise with altitude. The atmosphere plays a crucial role in supporting life on Earth by regulating temperature, enabling the water cycle, and protecting the planet's surface.
astronomy
The document describes the layers of the Earth's atmosphere. It is divided into four main layers from lowest to highest: the troposphere, stratosphere, mesosphere, and thermosphere. Each layer has a different temperature and composition. The troposphere is closest to Earth's surface and contains 75-80% of the atmosphere. Above that is the stratosphere, which contains the ozone layer that protects the Earth. The mesosphere is the middle layer, and the outermost layer, the thermosphere, contains the ionosphere and extends into space.
AGRO 112 Lacture 2.pptx
This document provides an overview of Earth's atmosphere, including its composition, structure, and importance. It discusses the following key points:
- The atmosphere is composed primarily of nitrogen, oxygen, and trace amounts of other gases. It also contains water vapor and aerosol particles.
- The atmosphere is divided into five main layers based on temperature - the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer has distinguishing temperature and chemical characteristics.
- The different layers play important roles. The troposphere contains most weather phenomena. The stratosphere absorbs ultraviolet radiation via the ozone layer. The thermosphere facilitates radio communication.
- Together,
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Layers of the atmosphere ppt.pptx
- 1. LAYERS OF THE ATMOSPHERE Std – 6TH Sec – A
- 2. ATMOSPHERE • Our earth is surrounded by a huge envelope of air called atmosphere • Atmosphere extends to more than 800km above the surface of earth • It protects us from harmful rays coming from sun • Availability of air is thicker near the earths surface and, it gradually decrease when we go higher
- 3. LAYER OF THE ATMOSPHERE • The atmosphere is made up of five different layers The troposphere The stratosphere The mesosphere The ionosphere The exosphere
- 4. DIFFERENT LAYERS OF THE ATMOSPHERE
- 5. TROPOSPHERE • Lowest layer of the atmosphere (closest to earth) • We all live in this layer of atmosphere • Most of the mass of the atmosphere is in troposphere • Clouds, weather changes happen in this layer
- 6. STRATOSPHERE • Second layer of the atmosphere • It is 50km above the troposphere • Here another layer is placed Ozone layer – it protects the living things from the harmful UV rays from sun, altitude increase and temperature also increase because ozone layer absorbs heat • Jets fly here because it is calm
- 7. MESOSPHERE • It is the third layer of the atmosphere • Meso means middle • Reaches from 80 km above the earths surface • It protects the earth from being hit from meteoroids which comes from space
- 8. IONOSPHERE • The Ionosphere is part of Earth's upper atmosphere, between 80 and about 600 km • where Extreme Ultra-Violet (EUV) and x-ray solar radiation ionizes the atoms and molecules thus creating a layer of electrons. • The ionosphere is important because it reflects and modifies radio waves used for communication and navigation.
- 9. EXOSPHERE • The exosphere is the highest and top layer of the Earth's atmosphere. • It marks the edge of space. • There are very few molecules in this layer. • The lightest atmospheric gases such as hydrogen and helium exist throughout the exosphere.
- 10. Thank you