Concept explainers
The percentage of freshwater supplied by polar ice caps, groundwater, and streams, lakes and rivers.
Answer to Problem 1TS
The percentage of freshwater supplied by polar ice caps is , groundwater is , and streams, lakes and rivers is .
Explanation of Solution
Given info: The fresh water supply on Earth is .
The amount of water locked in icecaps and glaciers is , underground water is nearly , and surface water is . Moreover, water in the form of soil moisture is .
Write the expression for the scale up factor.
Here,
is the fresh water supplied
Substitute for in the above expression to get .
Write the expression for the percentage of fresh water in icecaps and glaciers.
Substitute, for in the above expression to get .
Write the expression for the percentage of fresh water in ground.
Substitute, for in the above expression to get the value of
Write the expression for the percentage of fresh water in surface water bodies.
Substitute, for in the above expression to get the value of .
Conclusion:
Therefore, the percentage of freshwater supplied by polar ice caps is , groundwater is , and streams, lakes and rivers is .
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