How do decomposers increase soil fertility? 1. By retaining moisture in the soil 2. By decomposing and digesting the remains of dead organisms 3. By creating spaces for air and water 4. By burrowing beneath the topsoil

2. By decomposing and digesting the remains of dead organisms.

Decomposers, such as bacteria, fungi, earthworms, and various soil-dwelling organisms, break down organic matter, including dead plants, animals, and other organic materials. They consume and decompose organic matter, breaking it down into simpler compounds and returning essential nutrients, such as nitrogen, phosphorus, potassium, and carbon, back to the soil.

Through decomposition, decomposers break down complex organic compounds into simpler forms that plants can readily absorb and use for growth. This process releases nutrients into the soil, enriching it with essential elements necessary for the growth of new plants. As a result, decomposers play a vital role in the nutrient cycling process, improving soil fertility and supporting plant growth.

Hence, Option 2 is correct Answer.