Question: Which of these actions is an example of chemical weathering?

Answer: Oxygen in air reacts with iron content in rocks, causing them to change color.

Question: Reduce soil erosion:

Answer: planting vegetation, contour plowing, hydroseeding

Question: Increase soil erosion:

Answer: cattle grazing, deforestation

Question: Figure 1 shows a seaside cliff. Figure 2 shows the same cliff after a period of time has passed. What caused the change from figure 1 to figure 2?

Answer: rainfall and ocean waves

Question:

Answer: frost wedging

Question: Match each weathering agent with the structure or event it causes.

valleys

Answer: glaciers

Question: Match each weathering agent with the structure or event it causes.

landslides

Answer: gravity

Question: Match each weathering agent with the structure or event it causes.

cracked rocks

Answer: ice

Question: Match each weathering agent with the structure or event it causes.

canyons

Answer: rivers