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Earth's spheres & zones - Coggle Diagram
Earth's spheres & zones
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How the spheres interact
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Interaction between the spheres is a constant, on-going series of exchange. These are needed to maintain and operate the entire natural Earth system.
Water cycle
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Air temperature determines whether this descending water forms rain, snow, sleet or hail which are the four main types of precipitation.
Water that soaks into the ground becomes part of what is known as groundwater. It's estimated that 15% of all fresh water on Earth exists as groundwater.
There is an extensive system of underground stream and rivers composing the groundwater, all of which eventually return water to the oceans.
Water that doesn't soak into the ground or evaporate but continues to flow across the Earth surface is called runoff. This water collects in streams, rivers, and some eventually flows into the ocean.
The importance of water
65% of our bodies are made up water. Without water, a person can't live for more than a few days.
Water is used for household purposes, industry, agriculture, transportation, to generate electricity, and recreation.
Conserving water and reducing water pollution will become even more important in the future as global population continues to grow and the clean, fresh water supply dwindles.