Quiz on Weathering

The breaking of rocks results in the formation of soil and different landforms agents.

• weathering

• wiping

• boarding

Weathering caused by the breaking down of rocks into smaller pieces by physical force without any change in the chemical nature of the rocks.

• Mechanical weathering

• Chemical weathering

• Biological weathering

• Compositional weathering

Weathering caused by plants and animals.

• Mechanical weathering

• Chemical weathering

• Biological weathering

• Compositional weathering

What happen to rock when it is exposed to higher temperature?

• Evaporates

• Contracts

• Expands

• Sinks

The breakdown of rock is caused by acidic water that produces clay and soluble salts.

• Exfoliation

• Hydrolysis

• Oxidation

• Freeze-thaw

The breakdown of rock is caused by +- oxygen and water, often giving iron-rich rocks a rusty-colored weathered surface.

• Exfoliation

• Hydrolysis

• Oxidation

• Freeze-thaw

Occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.

• Exfoliation

• Hydrolysis

• Oxidation

• Freeze-thaw

Which results from weathering of rocks?

• Rocks become bigger.

• Rocks are buried under the sea.

• Rock breaks into smaller pieces

• Rocks are carried to other places.

How does heat cause weathering?

• Rocks contract when heated.

• Rocks are not affected by heat.

• Rocks expand when heated and break.

• Rocks become hard when heated.

Why weathering of rocks beneficial?

• It produces oil.

• It produces soil.

• It enriches the soil with humus,

• It enriches the soil with minerals.