Erosion | MCQs

Explanation

Explanation

This means that the loose sand associated with a dune can only form a slope of around 34°.

Once a sand dune stabilizes at the angle of repose, dunes can migrate in the direction of the wind

Explanation

Landslides are caused by disturbances in the natural stability of a slope.

They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions.

Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.

Explanation

Abrasion - When pebbles grind along the river bank and bed in a sand-papering effect.

Attrition - When rocks that the river is carrying knock against each other.

Explanation

The cycle of erosion by fluvial processes running waters or rivers is called normal cycle of erosion because of the fact that fluvial processes are most widespread.