Directions: In the following questions, a statement of assertion (A) ...
Organisms which break down the complex organic compounds present in dead and decaying matter are called decomposers, e.g., certain bacteria and fungi. Decomposers act as cleaning agents of the environment by decomposing the dead bodies of plants and animals. They also help in recycling of materials, replenishment of soil's nutrients etc. The consequence of their absence in an ecosystem can be disastrous as discussed below
(i) The dead bodies would keep lying, it would lead to their accumulation and thus, polluting the environment.
(ii) The elements by which bodies are made would never be returned to the environment. As a result, all the nutrients present in soil, air and water would soon be exhausted and the whole life cycle of organisms will be disrupted.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion: Decomposers act as cleaning agents of the environment.
Reason: The decomposers recycle waste material in the hydrosphere.
Explanation:
Decomposers play a vital role in the ecosystem by breaking down dead organisms and organic waste materials. They help in the process of decomposition, which is crucial for nutrient recycling and maintaining a healthy environment. Let's analyze the given assertion and reason.
Assertion: Decomposers act as cleaning agents of the environment.
This assertion is true. Decomposers, such as bacteria and fungi, are responsible for breaking down dead plants and animals into simpler substances. They secrete enzymes that help in the decomposition process, converting complex organic matter into simpler inorganic substances. This process helps in the removal of dead and decaying matter from the environment, preventing the accumulation of waste materials.
Reason: The decomposers recycle waste material in the hydrosphere.
This reason is also true. Decomposers play a crucial role in recycling nutrients in the environment. They break down dead organisms and organic waste materials, releasing essential nutrients back into the ecosystem. These nutrients can then be utilized by plants and other organisms, completing the nutrient cycle. The hydrosphere, which includes water bodies like rivers and oceans, also benefits from this recycling process as decomposers break down organic matter and release nutrients into the water.
Explanation of the relationship between Assertion and Reason:
The reason provided in the statement explains why the assertion is true. Decomposers act as cleaning agents by recycling waste material, preventing its accumulation and releasing essential nutrients back into the environment. Therefore, both the assertion and reason are true, and the reason correctly explains the assertion.
Conclusion:
Based on the explanation above, it can be concluded that both the assertion and reason are true, and the reason is the correct explanation of the assertion. Therefore, the correct answer is option 'A'.
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