Answer: What are the "following" questions?
wish I could've helped :) , so please be more deatiled/clear.
Answer:
True
In a free market, competition determines price, and so companies will compete with one another to offer the lowest prices.
Answer:
The difference between a mineral and a rock is (C) A rock is generally made up of an aggregate of minerals, but this is not a requirement. Rocks can also be made up of non-mineral matter.
Explanation:
Most of those major cities are located near Petroleum Fields and Coal Mines.