Science
Which of the following is not a role of decomposers in the ecosystem?
options
- Natural replenishment of soil.
- Enrichment of oxygen in atmosphere.
- Waste decomposition.
- Break-down of dead remains.
Environment
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Answer
Enrichment of oxygen in atmosphere.
Reason — Decomposers such as bacteria and fungi play a vital role in maintaining the balance of the ecosystem as they break down dead plants and animals into simpler substances, a process called decomposition.
This helps in the recycling of nutrients, leading to the natural replenishment of soil with minerals and organic matter and decomposers also help in waste decomposition, keeping the environment clean.
However, they do not enrich the atmosphere with oxygen. In fact, during decomposition, decomposers use up oxygen for respiration and release carbon dioxide instead.
Hence, enrichment of oxygen in the atmosphere is not a role of decomposers.
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