Water is found in various reservoirs on Earth and is constantly cycling between them through evaporation and precipitation in the water cycle. The largest reservoir is the oceans, which hold about 97.5% of Earth's total water supply. Freshwater makes up only 2.5% and is stored in glaciers, groundwater, lakes, rivers, the atmosphere and soil. The movement and distribution of water between these reservoirs is crucial to sustaining life.
This power point presentation is all about water resources and its characteristics.It is presented by Ram Angeles and Frank Gutierrez of section 11- San Juan from Rizal Technological University
This presentation is all about the different types of water resources on the planet Earth and this presentation also shows what kind of cycle that water undergoes to create rain, snow or hail. This presentation is also about how we can find different kinds of things that we normally do that destroys our bodies of water specially climate change and water pollution.
The Philippines is prone to geological events such as earthquakes, volcanic eruptions, and landslides. These natural events bring about different hazards that may cause damage to infrastructures and endanger human lives.
This power point presentation is all about water resources and its characteristics.It is presented by Ram Angeles and Frank Gutierrez of section 11- San Juan from Rizal Technological University
This presentation is all about the different types of water resources on the planet Earth and this presentation also shows what kind of cycle that water undergoes to create rain, snow or hail. This presentation is also about how we can find different kinds of things that we normally do that destroys our bodies of water specially climate change and water pollution.
The Philippines is prone to geological events such as earthquakes, volcanic eruptions, and landslides. These natural events bring about different hazards that may cause damage to infrastructures and endanger human lives.
The total volume of water on Earth is estimated at 1.386 billion km³ (333 million cubic miles), with 97.5% being salt water and 2.5% being fresh water. Of the fresh water, only 0.3% is in liquid form on the surface. In addition, the lower mantle of inner earth may hold as much as 5 times more water than all surface water combined (all oceans, all lakes, all rivers).
Learning objectives:
Identify the different subsystems that make up the earth
Describe the interactions that transpire in each subsystem
Diagram the subsystems that make up the earth including the interactions that transpire in each interface.
Explain that the Earth consists of four subsystems, across whose boundaries matter and energy flow
This is a powerpoint presentation that is about one of the Senior High School Core Subject: Earth and Life Science. It is composed of the theories that explains the Earth and its Subsystems (The Four Spheres).
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.
This is our group work in our science subject. We are assigned to make a power point presentation in order for us to understand and share our knowledge in the given chapter. We hope that you learned from the presentation the we have presented, thank you and good luck!
The total volume of water on Earth is estimated at 1.386 billion km³ (333 million cubic miles), with 97.5% being salt water and 2.5% being fresh water. Of the fresh water, only 0.3% is in liquid form on the surface. In addition, the lower mantle of inner earth may hold as much as 5 times more water than all surface water combined (all oceans, all lakes, all rivers).
Learning objectives:
Identify the different subsystems that make up the earth
Describe the interactions that transpire in each subsystem
Diagram the subsystems that make up the earth including the interactions that transpire in each interface.
Explain that the Earth consists of four subsystems, across whose boundaries matter and energy flow
This is a powerpoint presentation that is about one of the Senior High School Core Subject: Earth and Life Science. It is composed of the theories that explains the Earth and its Subsystems (The Four Spheres).
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.
This is our group work in our science subject. We are assigned to make a power point presentation in order for us to understand and share our knowledge in the given chapter. We hope that you learned from the presentation the we have presented, thank you and good luck!
Oceanography is the science that studies the oceans along with marine organisms and ecosystem dynamics, ocean currents and waves, plate tectonics and the geology of the sea floor, and the chemical substances and physical properties of the world oceans.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
grade 11 chapter 4 module Earth Science: Water Resources
1.
2. Water is everywhere.
71% of earth is covered in water. Oceans takes up 96.5%
of water percentage.
World’s most expensive commodity.
Earth is the only planet where the liquid form of water
exists.
3. Known as Water Cycle.
It explains the movement of water
around the earth’s surface and it’s
subsystems.
It consist of interconnected pathways
and reservoirs.
Mass balance maintains the total
amount of water.
Fluctuations may occur on a local
scale.
4. Earth’s Water Budget is the total amount of water in the planet. It remains
constant through time.
Water moves and changes it’s form but can neither be created nor destroyed.
The largest reservoir is the ocean that contains about 97.5% of earth’s water
budget which is mostly saline.
Freshwater only takes up 2.5% of earth’s water budget. It is found on
glaciers(68.7%), groundwater(30.1%), permafrost(0.8%), surface water and
atmospheric water.
6. Residence Time is the average length of time spent by the water
molecule in a reservoir.
The volume of water varies in each reservoir and their volumes
affect each other.
Note:
When water is in it’s solid state (ice) it will float on water in it’s liquid
state.
Ice occupies more volume per unit weight making it’s density less
than that of water.
7. Reservoirs are places where water resides for an amount
of time.
TYPES OF WATER RESEVOIR:
• Saltwater Reservoir
• Freshwater Reservoir
• Surface Water Reservoir
8. These reservoirs are vast bodies of saline water such as oceans.
Ocean is one of the most valuable resources of Earth.
It is divided into five distinct regions and into numerous seas, gulfs, bays and
straits.
There are four(4) recognized oceans:
-Atlantic Ocean -Pacific Ocean
-Indian Ocean -Arctic Ocean
SALINITY
- is the saltiness of saltwater. Major chemicals present in seawater are
sodium and chlorine ions.
- seawater salinity varies from 33 to 37 parts per thousand.
- volcanic eruptions are the main source of elements mixed in seawater.
9. Water salinity is maintained through hydrologic cycle.
Evaporation removes water that makes the seawater saltier.
Precipitation adds water that dilutes the seawater
Inflow from rivers and ground water also dilutes the sea.
As sea water freezes the salt is excluded.
10. Surface Layer (1st layer)
- 2% of the ocean that is affected by currents caused by prevailing winds.
Consist of warm, low density water that extends to a depth of 100m. Home of the
majority of marine plants and animals.
Thermocline (2nd layer)
- water temperature decreases with depth. This layer extends up to 1500m.
Deep Zone (3rd layer)
- in this layer the temperature is uniformly low. It covers 80% of ocean water.
Affected by Thermohaline circulation propelled by the sinking of cold, salty and dense
water in polar region and rising of warm, less salty waters of tropics.
11. Humans depend on freshwater in almost everything.
GLACIERS AND ICE SHEETS
A Glacier is a permanent body of ice from recrystallized unmelted snow.
These are again covered by another layer of snow as soon as winter arrives
and as the layers accumulate it becomes compacted tuning into a mass of ice.
An Ice sheet is a mass of glacial land ice extending more than
50,000km².
Glaciation result to large amount of water to become locked up as snow
that lowers the sea level and exposes more of lands and coastal areas.
12. There are approximately 24 million km³ freshwater that is
stored in glaciers and ice sheets.
90% is concentrated in Antarctica while the rest is found
in Greenland and in mountain of glaciers.
13. PERMAFROST
Permafrost is a soil, rock or sediments that is frozen for more
than two consecutive years. These are commonly found in polar
regions.
The thickness can reach from a few meters to 150m. During
summer, 30-100cm melts and refreezes during winter.
FRESHWATER IN PERMAFROST
Permafrost comprises 0.8% of total freshwater. It is estimated
to store 300,000km³ of water.
14. Surface waters includes the streams, lakes and wet lands where water from
rainfall, melting snow and ice, and ground water flows. It contains 0.3% of Earth’s
water.
STREAM
A moving body of surface water that flows down towards the sea level
because of gravity.
Streams are interconnected into a tree-shaped network that joined to a large
main stream or river. It holds 1.6% of total surface and atmospheric water.
Tributaries- smaller streams.
Drainage basin or Watershed - land area which water flows in particular stream.
Drainage divide - line that separates individual basin .
Interfluve - the narrow elongated landform that separates individual streams.
15. Overland flow – water moves downhill during a heavy rain.
Streamflow – when water enters the channels.
OVERLAND FLOW STREAMFLOW
16. LAKES
Lakes are large inland bodies that contains either freshwater or saline
water. It forms in places where water is collected due to land depression and
behind natural and man made dams. Lakes stores 67% of total atmospheric
water.
Ponds – small shallow lakes
Dams – barriers constructed along streams to contain the flow of water.
WETLANDS
Wetlands are lands where water cover the surface for a period of time. It
constitute 8.5% of total atmospheric water.
Wetlands are great breeding ground for fishes and invertebrates. The water
seeped by the ground can also replenish groundwater.
17. Marsh
- a shallow wetland around lakes, streams, and ocean where grasses
and reeds are the dominant vegetation.
Swamp
- a wetland with lush trees and vegetation found in low-lying areas
beside slow-moving rivers. Oxygen content of swamps are low.
Estuary
- a partly enclosed coastal body of water where fresh water from stream
meets saltwater from sea.
19. FLOODS
A natural event in which an area that is usually dry is submerged in
water. It occurs when precipitation is higher or when reservoirs collapse.
Vegetation reduces flood intensity.
Fluvial or Riverine Flood – occurs when a stream’s discharge is greater than
the capacity of the channel.
Flashflood – characterized by intense, high-velocity torrent of water.
Coastal Flooding – occurs when water overwhelms in low-lying areas along
the coast.
Pluvial or Surface Water Flood – occurs when rainfall creates a flood
independent of an overflowing stream.
20. GROUNDWATER
Groundwater is fresh water found in rocks and soil layers beneath the
surface. This is the largest reservoir that hold 30.1% of total freshwater on the
planet.
Aquifers – are water bearing rock layers. It is akin to a “sponge”.
Porosity – is the total amount of empty spaces in the rock that determines the
capacity of an aquifer.
Permeability – the ability of rocks or sediments to allow water to pass through
it.