Chemical Weathering Quiz

What is the primary difference between chemical and mechanical weathering?

• Mechanical weathering involves the addition of new minerals.

• Mechanical weathering alters the chemical composition of rocks.

• Chemical weathering changes the internal structure of minerals.

• Chemical weathering only occurs in dry climates.

Which agent is most important in chemical weathering?

• Water

• Sunlight

• Temperature

• Wind

What happens when water combines with carbon dioxide in the atmosphere?

• It forms hydrochloric acid.

• It forms carbonic acid.

• It forms sulfuric acid.

• It forms nitric acid.

What is a significant result of granite weathering?

• Formation of limestone

• Enrichment of soil with potassium

• Creation of new igneous rocks

• Increase in atmospheric carbon dioxide

Which mineral in granite remains unaltered by chemical weathering?

• Feldspar

• Quartz

• Mica

• Calcite

What is the most common material found on Earth's surface that undergoes weathering?

• Sulfates

• Oxides

• Silicates

• Carbonates

What is the primary importance of silicate weathering?

• It contributes to soil formation.

• It creates volcanic eruptions.

• It forms new igneous rocks.

• It increases atmospheric oxygen.

What shape do rocks tend to take on during spheroidal weathering?

• Pyramidal

• Cylindrical

• Spherical

• Cubic

Why do the corners of rocks round off during spheroidal weathering?

• They are more exposed to sunlight.

• They have greater surface area.

• They are less dense.

• They are softer than the rest of the rock.

Where can you find a classic example of spheroidal weathering?

• Yosemite National Park

• Joshua Tree National Park

• Yellowstone National Park

• Grand Canyon