Question

Out of the total percentage of water present as groundwater is
(a)0.1%
(b)0.3%
(c)0.5%
(d)0.75%

Answer 1

Hint: Out of 97% of water only 3% of water is freshwater and out of 3% of freshwater 2.5% is in the form of ice caps and glaciers after that groundwater occupies more percentage.

Complete answer:
Water covers about 71% of the earth’s surface. Out of 71%, only 3% of water is freshwater. Out of this 3% of freshwater 2.5% of water is in the form of ice. 0.75% of water is groundwater and the remaining water is in lakes, rivers, and in the form of vapor.

Additional Information: 1. Earth’s surface is covered with 29% of land and 71% of water. Out of 71% of water, 97% of water is saltwater which is present in oceans, seas, and saltwater lakes.
2. Remaining 3% of water present on the land is freshwater which is present in the form of glaciers, ice caps, groundwater, lakes, rivers, and in the atmosphere as water vapor.
3. Out of 3% of freshwater, 2.5% of the earth's freshwater cannot be used because it is locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted, or lies too far under the earth's surface to be extracted at an affordable cost.
4. 2.0% of freshwater is found in ice caps and glaciers, 0.75% of freshwater is in the ground as groundwater, 0.009% in freshwater lakes, 0.001% in the atmosphere, 0.0001% in the rivers.
5. Nowadays, groundwater is used as the main source of water in major cities.
6. Naturally, Saltwater can be turned into freshwater by a combined process called evaporation condensation.
7. water on the ground enters into the deeper parts of the ground via porous materials. This water fills pores and accumulates in layers of underground rock called aquifers. This water is called groundwater.
So, the correct answer is ‘0.75%’

Note: -On average, each person on the earth requires 8.4 million liters of water in their entire lifetime.
-This supply of water is continually collected, purified, and distributed via the water cycle.