Question

what were the three main causes of terrible dust storm in the USA?

Answer 1

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.

Answer 2

Hope this helps you...
---------
Dust storms and cyclones arent rare in USA . The three main causes of the terrible dust storm in USA are the wind and dry temperature and whether.Ocean temperature, and when the climate is dry contribute to the dust storms and they actually occur after they pass through harsh whether and dry climate .