Basically physical and chemical weathering (do not confuse with erosion, which involves movement) contribute to the destruction of mineral forms. In this case it breaks down the rocks, minerals and soils, creating slopes and hills. It may be caused by (any form of) water, wind, gravity, waves or sunlight.
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Answer:
A breakdown in trading alliances change or loss of local culture a decrease in avilable jobs
<span> the answer is 85,231 mi²</span>