Multiple choice general knowledge science & technology

Which one(s) of the following gas(es) is/are responsible for 'global warming'?

  1. Nitrogen

  2. CO2

  3. Sulphates

  4. Methane
Reveal answer Fill a bubble to check yourself
B,D Correct answer
Explanation

CO2 and methane are both greenhouse gases that trap heat in Earth's atmosphere through the greenhouse effect. Nitrogen (N2) is not a greenhouse gas as it doesn't absorb infrared radiation, while sulphates actually have a cooling effect by reflecting sunlight back into space.

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