Given below are two statements, one labelled as Assertion A and the other as Reason R. In the light of the above statements, choose the most appropriate answer from the options given below.
Assertion (A):Geothermal fluids are rich in salts and contaminants such as hydrogen sulphide and oxides of nitrogen.
Reason (R):They are re-injected into the ground rather than being dumped into rivers or ponds.
ABoth A and R are correct and R is the correct explanation of A
BBoth A and R are correct but R is not the correct explanation of A ✓ Correct
CA is correct but R is not correct
DA is not correct but R is correct
Correct answer: (B) Both A and R are correct but R is not the correct explanation of A
Explanation
Geothermal fluids drawn from deep rock are indeed laden with salts and contaminants such as hydrogen sulphide.
The assertion about their contaminant rich nature is a true statement.
To avoid polluting surface waters, these spent fluids are reinjected back into the ground.
The reason about reinjection rather than dumping is also true.
Reinjection is how the contaminated fluids are handled, not why they carry the contaminants.
Because the reason explains disposal and not the cause of contamination, it does not explain the assertion.
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