Question

Which gas is primarily responsible for the greenhouse effect?

• A. Oxygen
• B. Nitrogen
• C. Carbon dioxide
• D. Hydrogen

Hint:

*Remember:* "Carbon dioxide = Greenhouse effect." It's the gas that most contributes to trapping heat in the atmosphere.

Answer 1

The Correct Option is C

Solution:

Carbon dioxide (CO₂) is the main gas driving the greenhouse effect, a phenomenon where atmospheric radiation elevates a planet's surface temperature beyond what it would be without an atmosphere. This key greenhouse gas traps atmospheric heat, a major factor in global warming and climate change.

Other gases: Oxygen and Nitrogen, while plentiful in Earth's atmosphere, have minimal impact on the greenhouse effect as they do not absorb thermal infrared radiation. Hydrogen, being a light element, plays no significant part in Earth's greenhouse effect.