What process do decomposers use to release nutrients, and why is this process essential after a disturbance?

• A. Decomposition breaks down organic matter, releasing nutrients back into soil and water, enabling new plant growth after disturbances.
• B. Photosynthesis uses nutrients from soil for growth.
• C. Respiration releases nutrients from dead matter.
• D. Decomposition consumes nutrients without returning them to the environment.

Answer: (C)

Decomposers release nutrients by breaking down dead matter in a process called decomposition, which includes mineralization. Microbes and fungi chemically dismantle complex organic molecules and convert nutrients into inorganic forms that plants can absorb from soil and water. This recycling is essential after a disturbance because it replenishes the soil with usable elements (like nitrogen, phosphorus, and potassium), enabling new plant growth and helping the ecosystem recover. While respiration is part of how decomposers obtain energy from the material, releasing nutrients back to the environment happens during decomposition and mineralization, not through respiration alone.