What was most unusual about the western storms that that ravaged the plains during the great depression?

a/they created severe tornadoes.
b/they consisted of dust and not water.
c/they destroyed homes.
d/they brought thousands of new settlers to the area.

The most unusual feature about the western storms was that they consisted of dust and not water.

b/They consisted of dust and not water.

Explanation:

Overgrazing over large stretches of lands in the west left these lands with negligible grass covers and made them vulnerable to soil erosion due to winds.

The stormy winds that blew over these lands carried the dust to other parts of the country on a large scale and resulted in what came to be known as the dust storm.

These storms caused the most severe drought in the history of the United States and added to the already grievous intensity of the great depression.

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