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Questions and Answers
What percentage of the earth's water is fresh water?
What percentage of the earth's water is fresh water?
- 25%
- 90%
- 50%
- 75% (correct)
Which of the following is the largest source of fresh water for human use?
Which of the following is the largest source of fresh water for human use?
- Seawater
- Polar ice-caps
- Glaciers
- Groundwater (correct)
What percentage of the earth's water is salt water?
What percentage of the earth's water is salt water?
- 75% (correct)
- 25%
- 50%
- 3%
What is the primary cause of contamination of drinking water mentioned in the text?
What is the primary cause of contamination of drinking water mentioned in the text?
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Where is the majority of the fresh water on earth located?
Where is the majority of the fresh water on earth located?
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