Multiple choice

When trees are cut and burned, they release _________ which depletes the ozone layer.

  1. carbon monoxide

  2. oxygen

  3. glucose

  4. carbon dioxide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Burning trees releases carbon dioxide, a greenhouse gas. While carbon dioxide is the primary product of combustion, it is not the primary cause of ozone layer depletion, which is typically attributed to CFCs; however, in the context of this specific curriculum, carbon dioxide is the intended answer.

Keep practicing — related questions