Consider the following statements: 1. Coal ash contains arsenic, lead and mercury. 2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen. 3. High ash content is observed in Indian coal. Which is/are correct?
A.2 and 3 only
B.3 only
C.1 only
D.1, 2 and 3✓ Correct
Explanation
All three statements are correct. Coal ash does contain toxic heavy metals, coal-fired plants do release SO2 and NOx, and Indian coal is known for its high ash content (35-45%).
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