Erosion & Deposition

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow.

Front

What is deposition?

Back

Deposition is the process in which sediments, soil, and rocks are added to a landform or land mass.

Front

What is weathering?

Back

Weathering is the process that breaks down rocks and other materials on Earth's surface into smaller pieces.

Front

What are striations?

Back

Striations are scratches and grooves in rocks caused by glacial movements.

Front

How does freezing water contribute to weathering?

Back

Freezing water expands cracks in rocks, leading to their breakage.

Front

What role does vegetation play in erosion?

Back

Vegetation helps to prevent erosion by stabilizing the soil with roots and reducing the impact of raindrops on the soil surface.

Front

What is the difference between mechanical and chemical weathering?

Back

Mechanical weathering physically breaks rocks into smaller pieces without changing their chemical composition, while chemical weathering alters the minerals in the rocks.

Front

What is the significance of river deltas?

Back

River deltas are formed by the deposition of sediment carried by a river as the flow velocity decreases upon entering a standing body of water.

Front

What factors influence the rate of erosion?

Back

Factors include the type of soil, vegetation cover, water flow speed, and human activities.

Front

What is mass wasting?

Back

Mass wasting is the movement of soil and rock down a slope due to gravity, which can be accelerated by erosion.