5Which of the following describes a characteristic process in the formation of a pedalfer soil?
a. soil bacteria produce organic acids that precipitate calcium carbonate in the B horizon
b. iron oxides and aluminum-rich clays are precipitated in the B horizon
c. humus accumulates below the solum in the C horizon
d. clays are eluviated upward from the C horizon
6. Why is the humus layer typically thicker in a cool, temperate forest soil than in a tropical rainforest soil?
a. Less humus is produced in the tropical rainforest because the B horizon is so poorly developed.
b. Less humus is produced in the cool, temperate forest but the rate of decay and oxidation is slower than in a tropical rainforest.
c. More humus is produced in the tropical rainforest, but it is quickly washed away by the heavy rains.
d. In a tropical rainforest, the forest-floor litter is often burned during the dry season.
11. In the Rocky Mountain region of the United States, north-facing slopes (downhill direction is toward the north) are typically more moist and heavily forested than south-facing slopes. Why?
a. North-facing slopes receive more sunlight in the summer; snow melts faster and more soil moisture is available for the trees.
b. South-facing slopes receive more moisture and sunlight; rock weathering is slower.
c. North-facing slopes receive about the same amount of precipitation as south-facing slopes; less moisture evaporates from north-facing slopes.
d. South-facing slopes receive less moisture, yet rock weathering is faster.
21. Which term describes a soil formed by weathering of the underlying bedrock?
a. transformational
b. residual
c. relict
d. transported
23. Which term best describes those processes that move weathered rock materials and soils downslope?
a. podzolization
b. slope sheeting
c. mass wasting
d. talus transfer
25. Which of the following best describe the A soil horizon?
a. regolith zone
b. erosion zone
c. residual zone
d. leaching zone
Please help me! Thank you so much!
a. soil bacteria produce organic acids that precipitate calcium carbonate in the B horizon
b. iron oxides and aluminum-rich clays are precipitated in the B horizon
c. humus accumulates below the solum in the C horizon
d. clays are eluviated upward from the C horizon
6. Why is the humus layer typically thicker in a cool, temperate forest soil than in a tropical rainforest soil?
a. Less humus is produced in the tropical rainforest because the B horizon is so poorly developed.
b. Less humus is produced in the cool, temperate forest but the rate of decay and oxidation is slower than in a tropical rainforest.
c. More humus is produced in the tropical rainforest, but it is quickly washed away by the heavy rains.
d. In a tropical rainforest, the forest-floor litter is often burned during the dry season.
11. In the Rocky Mountain region of the United States, north-facing slopes (downhill direction is toward the north) are typically more moist and heavily forested than south-facing slopes. Why?
a. North-facing slopes receive more sunlight in the summer; snow melts faster and more soil moisture is available for the trees.
b. South-facing slopes receive more moisture and sunlight; rock weathering is slower.
c. North-facing slopes receive about the same amount of precipitation as south-facing slopes; less moisture evaporates from north-facing slopes.
d. South-facing slopes receive less moisture, yet rock weathering is faster.
21. Which term describes a soil formed by weathering of the underlying bedrock?
a. transformational
b. residual
c. relict
d. transported
23. Which term best describes those processes that move weathered rock materials and soils downslope?
a. podzolization
b. slope sheeting
c. mass wasting
d. talus transfer
25. Which of the following best describe the A soil horizon?
a. regolith zone
b. erosion zone
c. residual zone
d. leaching zone
Please help me! Thank you so much!