Assertion (A): Coal-based thermal power stations contribute to acid rain.
Reason (R): Oxides of carbon are emitted when coal burns.
Assertion (A): Coal-based thermal power stations contribute to acid rain.
Reason (R): Oxides of carbon are emitted when coal burns.
Answer:
(c)
Moderate
Acid rain is caused by sulfur oxides, not carbon oxides. Hence, (c) is correct.