I believe the answer is A, Pollution of the environment, hope this helps :)
Britain had the largest navy in the world, and they hired mercenaries to help fight against the colonists
Override a Presidential Veto (2/3 majority in both the House and the Senate — Article 1, Section 7) Ratify a treaty (2/3 majority in the Senate — Article 2, Section 2) Passing of a Constitutional Amendment by Congress (2/3 majority in both the House and the Senate — Article 5)
Answer:
epoch during the first 100 years of United States history where the economy progressed from manual labor and farm labor to a greater degree of industrialization based on labor.
Explanation: