Answers for Online Test - Online Exam - Online Quiz - Mock Test
←Go Back to Online Practice TestQues. Which of the following is a greenhouse gas? |
Option 1. Oxygen |
Option 2. Nitrogen |
Option 3. Carbon dioxide |
Option 4. Helium |
Ans. Option 3 |
Please provide the reason below. The best provided reason will be displayed with your name(if you are logged-in) on website. |
Enter Reason |
Is it helpful?
Yes
No