Question

Which of the following water sources is used for drinking purposes?

• A. Sea water
• B. Glaciers
• C. Ground water
• D. None of these

Answer 1

The correct option is C Ground water

Groundwater is, in general, easier and cheaper to treat than surface water, because it tends to be less polluted and hence used for drinking purposes.

Sea-water contains dissolved salt in it, hence it is not generally used for drinking purposes as it's very difficult to purify. Water stored in the form of glaciers mostly gets dissolved into seawater after melting rendering it unfit for drinking.

Hence, the answer is C.