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.
Answer
A
a forest because it has more trees to provide plant litter
B
a desert because it has soil with a larger particle size
C
a forest because it has more animals to mix the soil
D
a forest because the trees prevent rain from reaching the soil
E
a desert because the dry air decomposes plant litter