Multiple choice

The number of wells in South India is very low because

  1. the people of South India do not like to take water from wells

  2. hard rocks underneath the thin layer of the soil make it difficult to dig wells there

  3. there is too much rainfall and so, wells are not needed

  4. the people of South India do not know how to dig wells
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

South India has a thin layer of soil over hard crystalline rock (granite, gneiss) making well excavation extremely difficult and expensive. The hard rock requires specialized equipment, and wells yield limited water. This contrasts with North India's deep alluvial soil where digging wells is easier. Options A and D are nonsensical; option C is incorrect as rainfall distribution varies.

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