Question

which of these can result in desertification of rangelands?
overgrazing of livestock leading to wind and water erosion
fertilizing pastures and making sure that there are few livestock grazing
windbreaks, careful plowing, and few livestock
careful irrigation practices combined with moving livestock often

Explanation:

Desertification of rangelands is caused by practices that degrade the land. Overgrazing removes vegetation, making soil vulnerable to wind and water erosion, which leads to desertification. The other options (fertilizing with few livestock, windbreaks/careful plowing/few livestock, careful irrigation with moving livestock) are practices that help maintain or improve rangelands, not cause desertification.

Answer:

A. overgrazing of livestock leading to wind and water erosion