Weathering and Soil Answers

Which processes relate to mechanical weathering? Check all that apply.freezing and thawingplant growthoxidationabrasionacid rain

✔ topsoilorganic material subsoil

topsoil ✔ subsoilweathered rock

organic material subsoil ✔ weathered rock

✔ Area 1Area 2

Which material gives the soil its high fertility?

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

topsoil ✔ organic materialweathered rock

What materials combined to form the topsoil?

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.a forest because it has more trees to provide plant littera desert because it has soil with a larger particle sizea forest because it has more animals to mix the soila forest because the trees prevent rain from reaching the soila desert because the dry air decomposes plant litter