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Role of Water
Role and Location of Water
Question | Answer |
---|---|
amount of the Earth covered by water | about 70% |
amount of water on Earth that is saltwater | 97% |
amount of water on Earth that is freshwater | 3% |
amount of water on Earth that is FROZEN freshwater | 2% |
amount of water on Earth that is LIQUID freshwater | 1% |
Most freshwater is _________________. | unusable (because it is frozen) |
Why can't we use most freshwater? | It is frozen. |
What is the meaning of freshwater? | water with no salt |
Where is most water on Earth found? | in the Pacific Ocean |
What is another word for salinity? | saltiness |
What is an aquifer? | underground rocks that allow freshwater to flow between them; can only be reached by digging a well |
Three reasons it is hard to explore the bottom of the ocean: | too much pressure, too dark, too cold |