$A$ : Neither the community modifies environment nor the environment forces the community to leave the place in climax stage of succession.

$R$ : Climax community is xerophytic in most of the types of succession.

Which of the following is a functional aspect of an ecosystem?

What human activities are responsible for increase to the amount of in the atmosphere?

Desert can be converted into greenland by

Study of Biogeochemical cycles is called Biogeochemistry. Its father is Vernadsky $(=Winodgsky)$. It involves