Answer:
The amount of water on earth is constant, or nearly so.
Answer:
$540, you just multiply $50 x those 6 months=$300 then you multiply $40 x those other 6 months and you get $240 and then you add 240+300=$540
Explanation:
The most abundant fossil fuel is coal... Coal isn't only our most abundant fossil fuel,it's also the one with perhaps the longest history. The U.S. has more coal reserves than any other country in the world. In fact, one-fourth of the all the known coal in the world is in the U.S.
Answer:
the answer isn't letter B. magnetic fields of Earth.
Explanation: