Prepare a presentation about water?
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Answer:
About the Presentation
Target audience is elementary school children and above. Justin Tung created the presentation to be used for Educate for the Earth in 2000-2001 at Cornell University. Educate for the Earth was an student run organization to help educate children about their environment and encourage sustainability and stewardship of the Earth.
Presentation
What is water?
Water comes in 3 forms ice, water (the type that we usually see in oceans and lakes), and vapor (form of water in the air) – all have a clear color.
Where does it come from?
Water comes from sources on the Earth and is located in many places:
Some of these are: oceans, rivers, lakes, atmosphere, underground wells, and glaciers in places like the Antarctica.
Why is it important?
Our bodies are around 55-60 % water and the earth is 70% water.
We need water to live and stay healthy since a large percent of us is water.
Like us plants and animals also need water to survive. These include all living things both on land and underwater and of course water is obviously important to sea life like coral reefs, fish and sea plants.
What is water conservation?
It means to save and recycle our water so we use as least water possible.
“Water recycling is a critical element for managing our water resources. Through water conservation and water recycling, we can meet environmental needs and still have sustainable development and a viable economy.”
-Felicia Marcus, Regional Administrator Water Division Region IX
Water recycling is reusing treated wastewater for beneficial purposes such as farming, business, and home processes as well as refilling a ground water supplies (water recharge). A common type of recycled water is water that has been reclaimed from city wastewater, or sewage.
Through the natural water cycle, the earth has recycled and reused water for millions of years. Water recycling, though, generally refers to projects that use technology to speed up these natural processes.
There are numerous water recycling projects to increase the quality of water that is recycled because the usual quality now is non-drinkable, but still useful for farming and industries.
By providing an additional source of water, water recycling can help us find ways to decrease water taken from sensitive ecosystems. Other benefits include decreasing wastewater discharges and reducing and preventing pollution. Recycled water can also be used to create or enhance wetlands and habitats.
In some cases, the reasons for water recycling comes not from a water supply need, but from a need to eliminate or decrease wastewater discharge to the ocean, an estuary, or a stream.
While water recycling is a sustainable approach and can be cost-effective in the long term, the treatment of wastewater for reuse and the installation of distribution systems can be initially expensive compared to such water supply alternatives as imported water or ground water.
As water demands and environmental needs grow, water recycling will play a greater role in our overall water supply. By working together to overcome problems, water recycling, along with water conservation, can help us to conserve and manage our vital water resources to last into the future