Explain in your own words why the troposphere is so important to us on earth?

Troposphers is at the bottom and the lowest layer of atmosphere of earth which plays a vital and supportive role for existence of life on earth. this layer have the ability to absorb the solar and thermal radiation and protects the earth from the harmful effects of UV radiations from sun. due to this ability, they support the regulation of temperature, air conditions and moderate wind conditions.

the correct answer is:

a population changes in response to a change in the environment.