Question

what is an advantage of using contour plowing on hilly terrain? it enhances weed control. it decreases soil erosion. it increases soil erosion. it warms soil temperature.

Explanation:

Contour plowing involves plowing along the contours of the land. This method creates ridges and furrows that slow down the flow of water, reducing its erosive power. As a result, soil is less likely to be washed away, which is a significant advantage on hilly terrain where water runoff and soil erosion can be major issues. Options A (enhances weed control) and D (warms soil temperature) are not the primary benefits of contour plowing. Option C (increases soil erosion) is incorrect as contour plowing aims to reduce, not increase, soil erosion.

Answer:

B. It decreases soil erosion.