Landslides can be triggered by factors such as:

Heavy rainfall
Earthquakes
Human activities (e.g., construction)
All of the above

The correct answer is D. Landslides can be triggered by factors such as heavy rainfall, earthquakes, and human activities (e.g., construction).

  • Heavy rainfall can cause landslides by increasing the weight of the soil and making it more likely to slide.
  • Earthquakes can cause landslides by shaking the ground and loosening the soil.
  • Human activities, such as construction, can also cause landslides by removing trees and other vegetation that help to hold the soil in place.

Landslides can be a serious hazard, causing damage to property and infrastructure, and loss of life. It is important to be aware of the risks of landslides and to take steps to mitigate them.