Question

Part of earth covered by water is

• A. 50%
• B. 71%
• C. 87%
• D. 92%

Answer 1

The correct option is B

71%

The correct option is B.

Explanation for Correct option:

1. A hydrosphere is the total amount of water on a planet.
2. This water can be found as ice, liquid water, and water vapour.
3. Oceans, rivers, lakes, glaciers, subsurface water, and atmospheric water vapour all contain moving water.
4. Water covers around 71 per cent of the Earth's surface, with 96 per cent of that in the oceans as salt water and the remaining 3.5 per cent frozen in glaciers and polar ice caps.
5. Freshwater makes up only 0.5 per cent of the world's total water supply.

Final answer: Part of earth covered by water is 71%.