"excavating Earth’s surface to reach veins of clean coal" would be the best option because this is done fairly close to the top of the Earth's surface. It's a controversial and dangerous practice.
I would say B, I'm not fully sure.
Answer:
after the end of the french and indian war there where disputes of frontier policy and paying the war expenses which led to colonial discontent and also helped with starting the american revolution.
Explanation:
A committee appointed for a particular or temporary purpose in either the house or the Senate is referred to as a "subcommittee" since they are usually part of a bigger group.
Johnson served from 1865 to 1869, he was the first American president to be impeached.
