Which of the following is a benefit of using biosolids in agriculture?

Using biosolids in agriculture significantly benefits soil health and fertility. Biosolids are nutrient-rich organic materials derived from the treatment of sewage sludge, and when properly processed and applied, they can contribute essential nutrients such as nitrogen, phosphorus, and potassium to the soil. This not only enhances the fertility of the soil but also improves its structure, leading to better water retention and aeration. As a result, crops can grow more robustly, leading to increased agricultural productivity.

Moreover, the organic matter present in biosolids can improve the microbial activity in the soil, which is vital for nutrient cycling and overall soil health. Enhanced microbial life contributes to a balanced ecosystem, promotes plant growth, and helps in the decomposition of organic materials, further enriching the soil.

In contrast, the other options do not represent the primary benefits associated with the application of biosolids. Increased pesticide use is not a benefit but rather a concern regarding environmental impact. Higher water consumption is not directly related to the use of biosolids and may even be mitigated as improved soil health can enhance moisture retention. Lastly, the application of biosolids can promote biodiversity rather than decrease it, as healthy soils typically support diverse microbial and plant life.