Landslides

Q. Which of the following is/are not the natural causes of landslides?

1. Sea wave erosion
2. Earthquake
3. Mining and quarrying
4. Construction of roads

Q. A sliding of land mass along the steep slopes of hills or mountains is called __________.

1. Glacier
2. Landslide
3. Earthquake
4. Erosion

Q. Which of the following is/are the preventive measures against landslides?

1. Avoid mining and quarrying near steep slopes.
2. Slope reduction.
3. Planting trees along hills.
4. Building more roads and buildings on hills.

Q. According to The National Center for Earth Science Studies, any place with a slope above ___ degrees is prone to landslides.

1. 10
2. 20
3. 40
4. 30