The paragraph is followed by an incomplete phrase or sentence which summarizes the main idea of the paragraph. Choose the missing words of the phrase or sentence.

Soil conservation methods help farmers protect their land from the damage caused by farming and the forces of nature. One method of soil conservation is the use of windbreaks. Windbreaks arc barriers formed by trees and other plants. Farmers plant these barriers around their fields.
Windbreaks may stop the wind from （） soil away.