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Approximately what fraction of the earth's surface is covered with water?
Answer & Solution
Correct answer: D.
1. The Earth's hydrosphere covers most of the planet's surface.
2. NCERT Ch 3 opens by noting that three-fourth of the earth's surface is covered with water.
3. Of this, only a small proportion is usable freshwater obtained from surface run-off and groundwater.
_Source: NCERT Class 10 Geography Contemporary India - II, Ch 3 "Water Resources", §Intro ¶1_
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