Searching for logical divisions in a subject is a strategy for

A) determining your general purpose.

B) determining your main ideas.

C) determining your specific purpose.

D) determining your blueprint.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.