Weathering Quiz

Is the wearing away (disintegration and decomposition) of rocks by the effects of the weather and the atmosphere. No movement is involved in this so breakdown of the rock is said to be in situ (in that place).

• Denudation

• Weathering

• Erosion

The key difference between weathering and erosion is movement.

• True

• False

The agent that weathers the rock does not move the debris. Any movement of loose fragments happen due to gravity

• True

• False

What type of physical weathering involves regular heating and cooling leading to the rocks expanding and contracting and eventually go through the process that can also be known as onion peeling

• Frost Shattering

• Exfoliation

• Hydrolysis

• Carbonation

This type of physical weathering is also known as the freeze-thaw process. The temperature must fluctuate on either side of 0 degrees and there must be bare rock exposed at the surface

• Frost Shattering

• Exfoliation

• Hydrolysis

• Carbonation

This type of chemical weathering process is also known as the cation exchange. The process involves reactions between hydrogen in the soil water or rain, and in certain minerals such as feldspar in rocks like granite

• Frost Shattering

• Exfoliation

• Hydrolysis

• Carbonation

For this particular type of chemical weathering, rain water containing carbon dioxide absorbed from the atmosphere is able to dissolve calcareous (calcium- based) rocks

• Exfoliation

• Hydrolysis

• Carbonation

• Solution

This type of chemical weathering occurs when rocks are exposed to oxygen in air or water.

It is the chemical addition of oxygen compounds in the rock and it can weaken the structure of the rock

• Hydrolysis

• Carbonation

• Solution

• Oxidation

This type of chemical weathering involves minerals being soluble in water, especially if that water is slightly acidic.

• Hydrolysis

• Carbonation

• Solution

• Oxidation

This type of weathering involves both physical and chemical weathering. The tree roots anchoring into rocks would be physical weathering and tiny plants extracting iron from rocks would be chemical weathering

• Burrowing

• Chemical biotic weathering

• Biotic/ biological weathering

• Physical weathering