Which of the following best explains how human activities can directly contribute to landslides? a. removing plants from hillsides eliminates the root structures that anchor soil. b. clearing trees from hills increases the frequency of rainstorms. c. human activities tend to reduce the risk of fires. d. landslide are not impacted by human activities. select the best answer from the choices provided

The appropriate answer is A. Removing plants from hillsides eliminates the root structure that anchors the soil. Roots of plants not only anchor the soil they reduce surface runoff and increases infiltration. Increase surface runoff on slopes increases the risk of mass movement processes.
The removal of trees or deforestation usually occurs for agricultural and construction purposes. Other human activities that increases the potential for landslides includes increasing the slope angle and undercutting slopes.

A) Removing plants from hillsides eliminates the root structures that anchor soil.

The answer is observations and interpreting.

Ibelieve the answer is c.