Question

which human activity had the biggest impact on dust storms in 1930
A.diverting rivers and streams
B.using industrial pollutants
C.replacing natural grasses with crops
D.settling in new areas

Answer 1

your answer for this question is  B)

Answer 2

ANSWER:

Replacing natural grasses with crops had the biggest impact on dust storms in 1930.

EXPLANATION:

• Farming had been extensively practiced in 1930s. The farmers ploughed the fields and grew a wide variety of crops that replaced the natural grasses.

• The natural grasses had the ability to keep the soil fixed and trapped not allowing it to be carried away easily by water or wind.

• The removal of natural grasses led to the erosion of the top-soil which eventually led to dust storms and massive destruction.