Answer:
it is when air is traped and builds up into high preshure.
Answer:
Answer: Plains occur as lowlands along the bottoms of valleys or on the doorsteps of mountains, as coastal plains, and as plateaus or uplands. ... Plains may have been formed from flowing lava, deposited by water, ice, wind, or formed by erosion by these agents from hills and mountains.
The Roman government had a republic and some of there principles like electing a leader its still used in the American government today.
I think (A) but let someone double check
