B because there are too many deer so they all can't have enough food so the die.
I think its A
A dog will bark at animals and cars, but only if the environment permits.
-Seth
Answer:
Explanation:
Electromagnets. Electromagnets are a different from permanent magnets. Electromagnets are made of coils of wire with electricity passing through them. Moving charges create magnetic fields, so when the coils of wire in an electromagnet have an electric current passing through them, the coils behave like a magnet.
