Question

One should not sleep under a tree at night because of the

• A. Release of less oxygen
• B. Release of carbon dioxide
• C. Release of carbon monoxide
• D. Release of more oxygen

Answer 1

The correct option is B

Release of carbon dioxide

At night, plants and trees take in oxygen and give out carbon dioxide. So, the concentration of carbon dioxide in the air around the tree becomes more. This may lead to scarcity of oxygen in the blood. This is the reason why one should not sleep under a tree at night.