Question

Consider the following:
Statement-I: \( \text{CO}_2 \) is released into atmosphere by burning of fossil fuels and increase in \( \text{CO}_2 \) levels in air causes global warming.
Statement-II: CO is released into the air mainly by automobile exhaust and it is a lung irritant.

• A. Both Statement-I and Statement-II are correct
• B. Both Statement-I and Statement-II are not correct
• C. Statement-I is correct, but Statement-II is not correct
• D. Statement-I is not correct, but Statement-II is correct

Hint:

Carbon dioxide causes global warming; carbon monoxide is poisonous due to its binding with hemoglobin.

Answer 1

The Correct Option is C

Statement-I is true: \( \text{CO}_2 \) emissions from burning fossil fuels contribute to the greenhouse effect and global warming.
Statement-II is false: While CO is indeed released by automobile exhaust, its major health concern is being a toxic gas that binds with hemoglobin, not just a lung irritant.