is used by ecologists to describe the community interaction where one organism makes the environment more suitable for another organism?

Options for the question have not been given. They are as follows:

A) parasitism

B) mutualism

C) inhibition

D) facilitation

E) commensalism

D) facilitation

Explanation:

In ecology, facilitation is used to describe community interaction between two species in which at least one of the species is benefited. One species "facilitates" survival of another species and hence the term facilitation. They can provide facilitation by providing them refuge from predation, competition, physical stress etc.

Facilitation is broadly of two types, mutualism and commensalism. In mutualism, both the interacting organisms are benefited. In commensalism, one organism is benefited and another one is neither benefited nor harmed.

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong