B) Ecosystem - which includes the living communities and nonliving factors in an environment
Answer:Dark matter is invisible and does not emit electromagnetic radiation. Dark matter is part of a theory that hypothesis the existence of a counterpart to the particles we know in physics, in order to balance the universe that otherwise would be largely unbalanced right now. However, the theory right now is not yet proven.
Explanation:done
Answer:B lead to initial shortfalls In Timber supplies
Explanation: I got it right
