Which of the following directly contributed to soil erosion on the great plains in the 1930s?
a. railroads
b. heavy rains
c. farming
d. homesteading

I believe the answer is: C. Farming

In order to create a farming business, people at tend to need to create a space for the field, which obtained by going into a forest and cut down the trees so they can create a space. When they do this, the thing that maintain the strength of soil's structure is gone, which overtime would lead to erosion.

the answer to this question is the third option. hope this

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: