Which describes a similarity between abiotic and biotic Which describes a similarity between abiotic and biotic factors? A. They may include things that were once living.
B. They are both necessary for organisms to survive.
C. They are not usually important parts of the environment.
D. They can be easily replaced if they are used or destroyed. factors?

option A is correct.biotic is a nother word for living

option A would be the correct answer for the question below.

Explanation:

Which describes a similarity between abiotic and biotic factors?

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.