Ch 5 ES test - Weathering, Soil , and Mass Movements

Front

What is creep in the context of mass movements?

Back

Creep is the slowest type of mass movement, involving the gradual lifting and contracting of soil particles over time.

Front

What type of soil is found in the C horizon of a soil profile?

Back

Partially weathered parent material.

Front

What is frost wedging?

Back

Frost wedging is a weathering process that involves the constant freezing and thawing of water, leading to the breaking apart of rocks.

Front

Why do oversteepened slopes often lead to mass movements?

Back

Because the angle of their slope is greater than 40 degrees.

Front

What human activity increases the rate of erosion by removing vegetation?

Back

Deforestation.

Front

Define weathering.

Back

Weathering is the process of breaking down rocks and minerals into smaller particles through physical, chemical, or biological means.

Front

What is the difference between mechanical and chemical weathering?

Back

Mechanical weathering involves the physical breakdown of rocks without changing their chemical composition, while chemical weathering involves changes in the chemical structure of minerals.

Front

What is mass movement?

Back

Mass movement refers to the downward movement of soil and rock due to gravity.

Front

What is a rockslide?

Back

A rockslide is a rapid mass movement of rock down a slope.

Front

What is a mudslide?

Back

A mudslide is a type of mass movement that involves the flow of water-saturated soil and debris down a slope.