The answer is I Only
This is because Mining is a primary job while retail and sales are secondary jobs
The answer is a
As when the forest has been cleared there is nothing to reduce the amount of rain from hitting the soil, the rain washes away all the nutrients and sometimes even soil.
Hope this helps
Ocean currents act much like a conveyor belts, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.
Iron ore resource because it is the material of the steels and all its industrial products