L1.7 Exogenic Processes

What are exogenic processes?

• Internal geological forces

• External geological and geomorphic forces

• Biological processes

• Chemical reactions

Which of the following is an example of mechanical weathering?

• Oxidation of iron-rich minerals

• Carbonation of limestone

• Block disintegration due to temperature changes

• Dissolution of minerals in water

What is the primary factor contributing to mass wasting?

• plant root growth

• wind erosion

• gravity

• heavy rainfall

Which type of erosion involves the removal of thin layers of soil uniformly across a large area?

• wind erosion

• sheet erosion

• rill erosion

• gully erosion

What is the main cause of exfoliation in rocks?

• chemical reactions

• pressure release

• plant root growth

• heavy rainfall

What is the process of rocks rusting due to the reaction of iron-rich minerals with oxygen called?

• oxidation

• carbonation

• hydration

• solution

Which type of weathering is primarily influenced by the expansion and weakening of minerals due to the absorption of water?

• oxidation

• carbonation

• hydration

• solution

What is the primary factor contributing to soil erosion?

• wind erosion

• slope steepness

• plant root growth

• earthquakes

Which type of mass wasting involves the downhill movement of rock, soil, and debris as a flow?

• rockfall

• landslide

• mudflow

• sheet erosion

How do burrowing animals contribute to biotic weathering?

• They release chemicals that dissolve rocks.

• They create deep gullies.

• They loosen and mix soil and sediment.

• They cause block disintegration.