Weathering and Soil

Question 1

Which processes relate to mechanical weathering? Check all that apply.

Revolt · Accepted Answer

freezing and thawing; plant growth; abrasion

Question 2

Examine the soil profile and use the drop-down menu to select what each label identifies. Label O Label A Label B Label C

Revolt · Accepted Answer

organic material; Selection 1: organic material; Selection 2: topsoil; Selection 3: subsoil; Selection 4: weathered rock

Question 3

✔ Area 1Area 2

Revolt · Accepted Answer

Area 1

Question 4

Which material gives the soil its high fertility?

Revolt · Accepted Answer

humus

Question 5

Which soil sample has a soil texture that is high in sand?

Revolt · Accepted Answer

Sample C

Question 6

What materials combined to form the topsoil?

Revolt · Accepted Answer

decomposed plant litter and weathered parent material

Question 7

Soil classification is partially determined by the presence of organic material, such as humus. Which would have more humus—a desert or a forest—and why? Check all that apply.

Revolt · Accepted Answer

a forest because it has more trees to provide plant litter; a forest because it has more animals to mix the soil

Weathering and Soil Answers

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