The industrialization and mechanization of agriculture in the United States during the past 70 years have resulted in a decrease in the number of farms and an increase in the size of farms
an increase in the number of farms and a decrease in the size of farm fields
an increase in the diversity of crops and animals grown on individual farms
an increase in the economic viability of small towns in the agricultural regions
E a decrease in the tonnage of pesticides and herbicides used on cropland
DOLL

A decrease in the number of farmers and an increase in the size of farms

Explanation:

Mechanization replaced the previous labor task that usually done by human with Machines. Typically, machines tend to work at faster rate, longer hours, and cheaper cost in the long run.

Agricultural products that produced by factories generally much cheaper for the consumers. This made the farmers unable to compete, a lot of people start to lose their jobs and forced to sell their farms to another buyers.

whose power in the senate is equal to the power of the speaker of the house?