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In the following questions (42 to 46), a statement of assertion (A) is followed by a statement of reason (R)
A: Warm and moist environment can enhance the rate of decomposition.
R: Warm and moist climate leads to anaerobic condition which promotes decomposition.
If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
If Assertion is a true statement but Reason is false, then mark (3).
If both Assertion and Reason are false statements, then mark (4).
Answers (1)
Statement A: Warm and moist environment can enhance the rate of decomposition.
This statement is accurate. Decomposition is a biological process that involves the breakdown of organic matter by microorganisms. A warm and moist environment provides favorable conditions for the activity and growth of these decomposers. Higher temperatures increase the metabolic rates of microorganisms, accelerating the decomposition processes. Moisture helps facilitate the movement of nutrients and enzymes, supporting the microbial activity required for decomposition. Therefore, in a warm and moist environment, organic materials tend to decompose more rapidly.
Statement R: Warm and moist climate leads to anaerobic conditions that promote decomposition.
This statement is false. While warm and moist conditions can enhance decomposition, they do not necessarily lead to anaerobic conditions. Anaerobic conditions refer to environments with limited or no oxygen availability. Decomposition can occur under both aerobic (with oxygen) and anaerobic (without oxygen) conditions. In fact, aerobic decomposition generally occurs more rapidly due to the higher metabolic activity of aerobic microorganisms. Anaerobic decomposition, on the other hand, typically occurs in specific environments such as waterlogged soils, swamps, or deep layers of organic matter where oxygen availability is limited.
Hence, the correct answer is option 3.
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