A. maintaining and improving soil fertility
B. controlling soil erosion
C. preventing the build-up of pests and diseases
D. adding humus to the soil
Correct Answer:
Option D – adding humus to the soil
A. maintaining and improving soil fertility
B. controlling soil erosion
C. preventing the build-up of pests and diseases
D. adding humus to the soil
Correct Answer:
Option D – adding humus to the soil
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