pyq/2020/prelims/79

Consider the following statements:

1. Coal ash contains arsenic, lead and mercury.

2. Coal-fired power plants release Sulphur dioxide and oxides of nitrogen into the environment.

3. High ash content is observed in Indian coal.

Which of the statements given above is/are correct?

(A) 1 only

(B) 2 and 3 only

(C) 3 only

(D) 1, 2 and 3