4. The Roman Empire
( Muslim Empire is not a thing)
Coal mining is known for in Australia. Hope this helps! Happy Studying!
So that people have to pay for their effort. As you know everyone in the community needs to earn money somehow in order to live.
Also used for copy protecting in short term to honor them as well
Earth's atmosphere has a series of layers, each with its own specific traits. Moving upward from ground level, these layers are named the troposphere, stratosphere, mesosphere, thermosphere and exosphere. Hope this helped.
Answer:
the answer to this question is c
