If there was no CO₂ in earth's atmosphere, temperature of earth's surface would be

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12.Ecosystem

normal

If there was no $CO_2$ in the earth's atmosphere, the temperature of earth's surface would be

A

As such

B

Less than the present level

C

Increase from present level

D

Dependent upon oxygen amount of the environment

(AIPMT-1998)

Solution

(b)$CO_2$ layer around earth surface acts as insulator and does not allow heat of the earth to escape into space thus keeping the earth warm.

Standard 12

Biology

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