(a) is bound in atmosphere as moisture and clouds
(b) is found in freshwater lakes and rivers
(c) exists as groundwater
(d) exists as soil moisture
Answer: (c)
Option (c) is correct: About 71 per cent of the planetary water is found in the oceans. The remaining is held as freshwater in glaciers and icecaps, groundwater sources, lakes, soil moisture, atmosphere, streams and within life. Nearly 59 per cent of the water that falls on land returns to the atmosphere through evaporation from over the oceans as well as from other places. The remainder runs off on the surface, infiltrates into the ground or a part of it becomes glacier. Renewable water on the earth is constant while the demand is increasing tremendously. This leads to water crises in different parts of the world — spatially and temporally. The pollution of river waters has further aggravated the crisis.
