ecosystem:
Living and Nonliving Things in the Ecosystem. Ecosystems -- biological communities -- include living organisms like animals, plants, insects and bacteria, as well as nonliving components like rocks, soil, water and sunlight.
Your answer would be <em><u>D. refrigerator coils keeping the refrigerator cold</u></em>
It is d because pesticides run off into water, they are absorbed into soil , and they are left in the air , hope this helps :)
I. The climate of a place affects the migration of migration of people
