Multiple choice

It is not advisable to sleep under a tree at night because trees release

  1. carbon dioxide

  2. oxygen

  3. carbon monoxide

  4. sulphur dioxide

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

At night, photosynthesis stops, but plants continue to respire, consuming oxygen and releasing carbon dioxide. Therefore, sleeping under a tree at night can lead to higher concentrations of carbon dioxide.