How does decomposition help in nutrient cycling?

Decomposition plays a central role in nutrient cycling by converting complex organic matter into simpler inorganic substances that can be reused by plants and other organisms.

When plants and animals die, their bodies contain essential nutrients such as carbon, nitrogen, phosphorus, and potassium. Decomposers like bacteria and fungi break down this organic matter into basic forms such as carbon dioxide, nitrates, and phosphates. These nutrients are then released into the soil and atmosphere.

Plants absorb these inorganic nutrients from the soil through their roots and use them for growth and development. Animals, in turn, obtain these nutrients by consuming plants or other animals, thereby continuing the cycle.

Without decomposition, nutrients would remain locked in dead organisms and would not be available for reuse, leading to depletion of soil fertility and disruption of ecosystems.

Thus, decomposition ensures the continuous circulation of nutrients, maintaining the balance and sustainability of the environment.