Contour plowing is a soil conservation method that involves a. plowing across hill slopes b. plowing deeper into soil when planting c. flattening hills to create flat land before plowing d. never planting crops on hills

A. Plowing across hill slopes. :)

A. Plowing across hill slopes

Explanation:

Contour plowing is the process of ploughing across a sloped land. In this method furrows and crop rows are created which act as a reservoir to collect rainwater. This helps the soil in retaining the rainwater in the furrowed regions and prevents the loss of top surface soil by surface runoff.  

answer; the above answer to the above statement is (true)

answer; i believe the correct answer to the above question is ( friction)