The correct answer is d) All of the above.
Monoculture is the practice of growing a single crop in a large area. This can lead to a number of problems, including soil degradation, increased pest infestations, and loss of biodiversity.
Soil degradation is the process of soil becoming less fertile and less able to support plant growth. This can be caused by a number of factors, including monoculture. When a single crop is grown in a field year after year, the soil can become depleted of nutrients. This can make it difficult for the crop to grow and can also make the soil more susceptible to erosion.
Increased pest infestations are another problem associated with monoculture. When a single crop is grown in a large area, it provides a perfect habitat for pests. Pests can quickly multiply and cause significant damage to the crop.
Loss of biodiversity is another problem associated with monoculture. When a single crop is grown in a large area, it displaces other plants and animals. This can lead to a loss of biodiversity in the area.
In conclusion, monoculture can lead to a number of problems, including soil degradation, increased pest infestations, and loss of biodiversity.