Shyam lives in a village. When there is power cut he goes to sleep beneath a tree at night. An old man saw him sleeping under a tree and advised him not to sleep under a tree at night. Can you give a suitable reason?

Shyam should not sleep under the tree at night.

• At night the plants don’t perform photosynthesis so they don’t use the CO_2.

• This increases the amount of CO₂ in the air.

• During the night, if Shyam sleeps under the tree, the amount of CO₂ will be more around Shyam.

• When he will breathe or respire, he will not get the required oxygen and will inhale the CO₂ around him.

• This will increase the amount of carbon dioxide in his body.

• It will surely affect the health cause of the increased amount of CO₂ in the body.

• Shyam may even suffer from suffocation. Hence, the old man advised him not to sleep under a tree at night.