Question

Why did the whole region of the Great Plains become a dust bowl?

Answer 1

(i) When wheat cultivation had expanded dramatically in the early $19th$ century, zealous farmers had recklessly uprooted all vegetation and tractors had turned the soil over and broken the sod into dust.
(ii) The whole region had become a dust bowl. In the $1930s$, terrifying dust storms began to blow over the southern plains of America.
(iii) Black blizzard rolled in, very often $7,000$ to $8,000$ feet high, rising like monstrous waves of muddy water. The American dream of a land of plenty had turned into a nightmare.