The ice caps are melting due to global warming which is being affected by the polluted air
The answer is letter B. Particles in the atmosphere clearing the surrounding air which did not occur as a result of oil production and distribution around the Persian Gulf. All other choices such as A, C, D happened or occurred as a result of the oil production around the Persian Gulf.
Answer: Cropping patterns
Explanation: refers to proportion of area under different crops at different points of time. It also indicates the time and spatial arrangement or sequence of crops and / or fallow in a particular land area.
I think the two sources would be drip irrigation which is like a river, lake, groundwater, etc... The second source could be is making a new irragation system that could deliver water faster.
Answer:
Cold is transported away from the poles and moves it into the deep and eventually towards the equator. The resulting current helps to draw warmer waters from the mid-latitudes towards the poles. The overall effect is to moderate much of the worlds climate.
Explanation: