Weathering and Soil

Question 1

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

Revolt · Accepted Answer

A: freezing and thawing; B: plant growth; D: abrasion

Question 2

Which material gives the soil its high fertility?

Revolt · Accepted Answer

D: humus

Question 3

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

Revolt · Accepted Answer

C: Sample C

Question 4

What materials combined to form the topsoil?

Revolt · Accepted Answer

C: decomposed plant litter and weathered parent material

Question 5

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

Question 6

✔ Area 1Area 2

Revolt · Accepted Answer

A: Area 1

Question 7

Question 7

Revolt · Accepted Answer

Examine the soil profile and use the drop-down menu to select what each label identifies. Label O: organic material; Label A: topsoil; Label B: subsoil; Label C: weathered rock

Question 8

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

B: organic material

Question 9

✔ topsoilorganic material subsoil

Revolt · Accepted Answer

A: topsoil

Question 10

topsoil ✔ subsoilweathered rock

Revolt · Accepted Answer

B: subsoil

Weathering and Soil Answers

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