Portion of the earth has been covered by hydrosphere.

1.	Portion of the earth has been covered by hydrosphere.
Answer» <html><body><p><strong>Answer:</strong></p><p>The hydrosphere is the <a href="https://interviewquestions.tuteehub.com/tag/sum-1234400" style="font-weight:bold;" target="_blank" title="Click to know more about SUM">SUM</a> of <a href="https://interviewquestions.tuteehub.com/tag/earth-13129" style="font-weight:bold;" target="_blank" title="Click to know more about EARTH">EARTH</a>'s <a href="https://interviewquestions.tuteehub.com/tag/water-1449333" style="font-weight:bold;" target="_blank" title="Click to know more about WATER">WATER</a>, in the ocean, the ground, on the surface, and in the <a href="https://interviewquestions.tuteehub.com/tag/air-852233" style="font-weight:bold;" target="_blank" title="Click to know more about AIR">AIR</a>. Approximately 71 percent of Earth's surface is covered in water.</p></body></html>

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