I believe the answer is A :3
Answer:
it means to break apart dead organisms into simpler inorganic materials.
Explanation:
Answer:
As the war dragged on, the Union's advantages in factories, railroads, and manpower put the Confederacy at a great disadvantage. Nearly every sector of the Union economy witnessed increased production. ... This mechanization became even more important as many farmers left home to enlist in the Union military.
The long term effects were the Mongol Invasion and was caused by Europe spreading diseases and terror
