Questions: 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 litter a desert because it has soil with a larger particle size a forest because it has more animals to mix the soil a forest because the trees prevent rain from reaching the soil a desert because the dry air decomposes plant litter

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 litter
a desert because it has soil with a larger particle size
a forest because it has more animals to mix the soil
a forest because the trees prevent rain from reaching the soil
a desert because the dry air decomposes plant litter
Transcript text: 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 litter a desert because it has soil with a larger particle size a forest because it has more animals to mix the soil a forest because the trees prevent rain from reaching the soil a desert because the dry air decomposes plant litter
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Solution

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The answer is the first one: a forest because it has more trees to provide plant litter.

Explanation for each option:

  • A forest because it has more trees to provide plant litter: This is correct. Forests typically have a dense canopy of trees that shed leaves, branches, and other organic matter, which decompose to form humus. This organic material enriches the soil, making forests rich in humus.

  • A desert because it has soil with a larger particle size: This is incorrect. The particle size of soil does not directly contribute to the amount of humus. Deserts generally have less organic material due to the sparse vegetation and limited plant litter.

  • A forest because it has more animals to mix the soil: This is partially correct. Forests do tend to have more animals, such as earthworms and insects, which can help mix organic material into the soil, contributing to humus formation. However, the primary reason forests have more humus is due to the abundance of plant litter.

  • A forest because the trees prevent rain from reaching the soil: This is incorrect. While tree canopies can intercept some rainfall, they do not prevent rain from reaching the soil entirely. Moreover, the presence of humus is more related to the amount of organic material available rather than rainfall interception.

  • A desert because the dry air decomposes plant litter: This is incorrect. Dry air in deserts actually slows down the decomposition process because moisture is a key factor in the breakdown of organic material. As a result, deserts typically have less humus compared to forests.

In summary, forests have more humus primarily due to the abundance of plant litter from trees, which decomposes and enriches the soil.

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