Answer: Mining is an activity which the earth is dig to obtain minerals and oil reservoirs.
Explanation:
The two environmental consequences that are responsible for filling the valleys are soil erosion and downstream mining causing the contamination of the neighboring water source. Soil erosion is resultant of the mining activity causing the trees to be uprooting from their site and making soil prone to the affect of physical factors like wind and water.
Factors of Production and Competition (honorable mentions are Accumulation of Capital and Private Property)
E & 4. A & 2. C & 5. B & 3. D & 1. Im not positive that these r the answers but, heres what <em>I think.</em>
they sent them to fight the war
Oceans cities roads homes ecosystems