Question

Which of the following statements accurately describes a landslide?

1. A landslide is primarily the movement of soil or rock down a slope, driven by gravity.
2. The speed of a landslide is always rapid and destructive, leaving no time for evacuation.
3. The term 'landslide' exclusively refers to the downward movement of soil, not rock materials.
4. Landslides encompass any downward and outward movement of natural slope materials, including both rock and soil.

• A. i, iii
• B. iv
• C. i, iv
• D. iii മാത്രം

Answer 1

Answer:

C. i, iv

• A landslide is a significant geological phenomenon involving the downward movement of earth materials on a slope. While gravity is the primary driving force, the speed of landslides can vary dramatically, from very slow, barely perceptible creeps over years to extremely rapid and destructive flows that can travel at high speeds. The term is comprehensive, covering the movement of both rock and soil. Landslides are a natural hazard often exacerbated by human activities such as deforestation and improper land use, leading to significant property damage and loss of life.