Minerals are mined from the ground in two of the most common processes: surface mining (minerals at or near the surface) and subsurface mining (minerals deep underground in the Earth). Minerals are processed through mineral processing which separates the valuable items from the rest of the mineral.
Answer:
I believe it's the state of the union address.
Explanation:
The president runs every 4 years so it cant be A.
The president can be impeached at any time so it cant be C.
Answer B is just super wacky. So I would say D.
Answer:
The most recent even is the collapse or dissolving of the soviet union.
Explanation:
18) D. All of the above. 19) C.4 20) B. Concrete.
Answer: This is the slave trade map