B because that is what happens if u have a reaction to something and stuff like that
<span>C. The transferred electron from lithium to fluorine provides each atom with a full outer energy level.</span>
Answer:
For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community. A brief treatment of biological communities follows. ... The various species in a community each occupy their own ecological niche.
