If you look at Earth from space, you see much more water than land.
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Less than half of the people on Earth experience extreme water scarcity for at least one month a year.
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The planet will run out of water completely.
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Water naturally changes between liquid, vapor, and ice as it moves around the world.
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97% of the water on Earth is saltwater.
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Only 3% of the clean water on Earth available as drinking water to humans.
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We need new cultivation techniques that grow food using less water.
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The main factors in how much rain a region has are climate and geography.
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to provide things that people want or need
supply
to need or demand something
require
the possibility of something bad happening
a risk
important or noticeable
significant
to do something or deal with something successfully
to manage
enough
adequate
to get and keep things of one type such as stamps or coins as a hobby
to collect
a useful or valuable possession or quality of a country, organization, or person
resource
