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2 cards from this section. Quick, good the night before a test.
What percentage of Earth's water is saltwater?
Think about what we drink.
Name one form of freshwater.
Consider what we use for irrigation.
What percentage of Earth's water is freshwater?
Remember the balance between saltwater and freshwater.
True or False: Groundwater is less abundant than surface water.
Think about where most of our drinking water comes from.
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