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Usable water on earth is roughly what share of all water?

A6 per cent
B0.6 per cent
C60 per cent
D0.006 per cent
Answer & Solution
Correct answer: D. 0.006 per cent
1. The bucket activity shows the proportions. 2. Usable water is roughly 0.006 per cent. 3. It is an alarmingly small quantity. _Source: syllabus Science, Chapter 16, Water: A Precious Resource._
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