Weathering and Soil Review

Front

What type of valley is created by a river?

Back

V-Shaped Valley

Front

What shape of valley is typically formed by glacial movements?

Back

U-Shaped Valleys

Front

What is the main difference between chemical weathering and physical weathering?

Back

Chemical weathering involves changes in the mineral composition of rocks, while physical weathering involves the breakdown of rocks without changing their chemical composition.

Front

What is an example of chemical weathering?

Back

Oxidation: rocks with metals like iron or copper can rust and weaken.

Front

What is the primary source of the gases that contribute to acid precipitation?

Back

Human industrial activities.

Front

Define weathering.

Back

The process of breaking down rocks and minerals through physical, chemical, or biological means.

Front

What is physical weathering?

Back

The mechanical breakdown of rocks into smaller pieces without changing their chemical composition.

Front

What is chemical weathering?

Back

The process that alters the chemical composition of rocks, often through reactions with water, acids, or gases.

Front

Give an example of physical weathering.

Back

Ice wedging: water seeps into cracks, freezes, and expands, breaking the rock apart.

Front

What role do plants play in weathering?

Back

Plants can contribute to weathering through root growth that breaks apart rocks and through the production of organic acids.