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PS 103 Chapter 12 questions and answers already solved 2024
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PS 103 Chapter 12 questions and answers already solved 2024
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PS 103 Chapter 12Agricultural operations can cause modifications to the C horizon. - correct
answer ✔F
Soils in wet tropical regions tend to have high organic matter and distinct
profiles. - correct answer ✔F
Weathered rock can be a source of essential minerals for plants. - correct
answer ✔T
Plants with low C:N ratios decay rapidly. - correct answer ✔T
Sawdust added to soil can cause nitrogen deficiency. - correct answer ✔T
Organic matter has a positive charge. - correct answer ✔F
Higher earthworm populations are achieved in conventional tillage in
comparison to no-till. - correct answer ✔F
Plants infected with mycorrhizal fungi can absorb phosphorus better than
noninfected plants. - correct answer ✔T
Productive soils are densely packed. - correct answer ✔F
A plant will extract water at field capacity until it reaches the permanent wilting
point. - correct answer ✔T
, Sandy soils drain at a faster rate than clay soils. - correct answer ✔T
Soils that are fertile and hold nutrients will have a low cation exchange
capacity. - correct answer ✔F
The pH of a soil is important because it influences the availability of plant
nutrients. - correct answer ✔T
Most crops grow well in soils with high salinity. - correct answer ✔F
Crop yields will increase indefinitely in response to increasing fertilizer. -
correct answer ✔F
Synthetic fertilizers are used to provide organic matter to the soil. - correct
answer ✔F
Geologic erosion occurs at a faster rate than soil formation. - correct answer
✔F
Erosion can leave behind less fertile subsoils. - correct answer ✔T
How thick does the soil layer tend to be in agricultural regions?
A. 3 to 4 inches
B. 4 to 12 inches
C. 3 to 4 feet
D. 4 to 12 feet - correct answer ✔C
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