Select the correct option to test your answer: A CO 2 , CFC, CH 4 and NO 2 B CO 2 , O 2 , N 2 , NO 2 and NH 3 C CH 4 , N 2 , CO 2 and NH 3 D CFC, CO 2 , NH 3 and N 2 Correct Answer: Option A (CO 2 , CFC, CH 4 and NO 2) Verified correct option for Agriculture (Environmental Science In Agricultural).