Question

a farmer examines the soil of a new plot of land he just purchased. he notices that the soil is very dark, almost black in color. the soil is filled with organic material. based on his experience, the farmer knows this soil has a high fertility. which material gives the soil its high fertility? bedrock sand silt humus

Explanation:

Humus is decomposed organic matter. It enriches soil with nutrients, improves soil structure, and enhances water - holding capacity, all of which contribute to high soil fertility. Bedrock is solid rock beneath the soil and does not contribute to fertility. Sand has large particles and poor water - holding and nutrient - holding capacity. Silt has better water - holding capacity than sand but less nutrient - enriching properties compared to humus.

Answer:

humus