The answer on the test I took said mass wasting was the right answer
Erosion, cause it causes only negative consequences
This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice. As a consequence the surrounding seawater gets saltier, because when sea ice forms, the salt is left behind. As the seawater gets saltier, its density increases, and it starts to sink.
B, both in real history and this chart, America created the first atomic weapons, and Russian spies during WW2 wanted to have the advantage of such power, lest America have a monopoly on pure Force.
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