Weathering and Erosion Quiz

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<p>It dissolves minerals in rocks due to carbon dioxide in water. (B)</p> Signup and view all the answers

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The breakdown of rocks by physical changes, like freezing and thawing of water or temperature changes.

The breakdown of rocks through chemical reactions, like oxidation or acid reactions.

Water seeps into rock cracks, freezes, expands, and causes the rock to break apart. This cycle repeats, leading to weathering.

The process where oxygen combines with other chemicals, like iron in rocks, causing a change in color and weakening the rock.

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A type of chemical weathering where carbon dioxide dissolves in rainwater creating a weak acid that breaks down rocks.

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Ice wedging (frost wedging): Water seeps into cracks, freezes, expands, and widens the cracks.
Temperature changes: Expansion from heat and contraction from cold can weaken and break rocks.
Pressure changes: Exfoliation - outer layers peel away due to pressure changes.
Abrasion: Rocks break down by the mechanical action of other rocks, water, wind, and gravity.
Biological activity: Plants growing in rocks can cause weathering.

Oxidation: Oxygen reacts with minerals, changing their color (e.g., rust).
Acids: Groundwater acids (e.g., carbonic acid) dissolve minerals and rocks.
Carbonic acid: Carbon dioxide in the air dissolves in rainwater, forming a weak acid.