Which of the following practices can improve soil fertility?
A. Overgrazing B. Monocropping C. Crop rotation D. Deforestation E. Slash and burn
Correct Answer: C
Explanation
Crop rotation involves planting different types of crops sequentially on the same plot of land. This practice helps to improve soil structure and fertility by alternating crops with different nutrient requirements and rooting depths. It also reduces the build-up of pests and diseases that can occur when the same crop is grown continuously.