What were the three main causes of terrible dust storm in the america
Answers
The three main causes of the terrible dust storm in the USA were fluctuations in the ocean temperature, and when the climate is dry and another reason for the dust storm is the poor farming techniques. And such storms contribute to harsh and dry climate after they pass.
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1) When wheat cultivation had expanded dramatically in the early nineteenth
century, zealous farmers had recklessly uprooted all vegetation, and tractors
had turned the soil over, and broken the sod into dust.
2) In the 1930s, terrifying dust storms began to blow over the southern plains.
Black blizzards rolled in, very often 7,000 to 8,000 feet high, rising like
monstrous waves of muddy water.
3) As the skies darkened, and the dust swept in, people were blinded and choked.
Cattle were suffocated to death, their lungs caked with dust and mud. Sand
buried fences, covered fields, and coated the surfaces of rivers till the fish died.
4) The wind blew with ferocious speed.
5) But ordinary dust storms became black blizzards only because the entire
landscape had been ploughed over, stripped of all grass that held it together