D....carbon can also form triple and quadruple bonds
Answer:
I think the answer is B, Rivers. Mountain ranges don't really help the environment much as can mostly only change the climate.
The major differences are that fats are solid at room temperature while oils are liquid, and that oils are usually of plant origin while fats are of animal origin.
The reasons are many. The most major reason was the fact that they were outnumbered by the U.S.
