List any three human activities which would lead to an increase in `CO_2` in air.

List any three manures.

List any three human activities that you think would lead to air pollution.

List any three important characteristics of population and explain them.

we know that many human activities lead to increasing levels of polluation of the air, water bodies ans soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution.

We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and limited areas would help in reducing pollution?