Q. Which of the following are among the gases primarily responsible for the greenhouse effect on Earth?

1. Carbon Dioxide
2. Methane
3. Nitrogen

Select the correct option from the codes given below:
Answer: Only 1 & 2
Notes: The primary greenhouse gases in Earth's atmosphere include carbon dioxide and methane. These gases trap heat, contributing to the greenhouse effect, which is crucial for maintaining Earth's temperature. Nitrogen, while a major component of the atmosphere, is not considered a greenhouse gas because it does not contribute to this heat-trapping effect.