Water shortages may be caused by climate change, such as altered weather patterns including droughts or floods, increased pollution, and increased human demand and overuse of water. ... Water scarcity is being driven by two converging phenomena: growing freshwater use and depletion of usable freshwater resources.
D. Nobody knows exactly but it’s around a century
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More than 300,000 people moved to California during the Dust Bowl to start over because of the damage to land caused by the Dust Bowl. Because of the Great Depression, many of the farmers who migrated to the cities to look for work due the Dust Bowl's destruction of their land could not find employment.
Explanation:
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