EDUCATION UGC NET
ENVIRONMENTAL STUDIES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
0.1%
|
|
|
0.01%
|
|
|
0.001%
|
|
|
0.0001%
|
Detailed explanation-1: -Only 0.6% of water is available as fresh water in liquid form out of which 0.59% is present as groundwater & only 0.01% is available as fresh water on the surface of the earth.
Detailed explanation-2: -Only 3% of the available water is freshwater out of which only 1% of the world’s freshwater is found in rivers, ponds and lakes. About 67% of freshwater is locked in the form of ice in glaciers and snow.
Detailed explanation-3: -The oceans constitute 97.3% of all water sources on the Earth. Thus, the percentage of freshwater sources is only 2.7%. Of all the freshwater sources, only 2.9% of it is available to us in the form of freshwater lakes, rivers, and groundwater.
Detailed explanation-4: -Only about three percent of Earth’s water is freshwater. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams.
Detailed explanation-5: -Thus, the correct answer is ‘Polar ice.