Assertion (A) : Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes.
Reason (R) : Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes.
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion (A) Analysis:
The statement asserts that biodiversity is generally higher in lower latitudes (closer to the equator) compared to higher latitudes (closer to the poles). This is a widely recognized ecological pattern known as the latitudinal gradient of biodiversity. Factors contributing to this include higher solar energy input, stable warmer climates, and greater precipitation in tropical (low-latitude) regions, which support more species.
Therefore, Assertion (A) is correct.
Reason (R) Analysis:
The statement asserts that along mountain gradients, biodiversity is typically greater at lower altitudes (closer to the base) compared to higher altitudes (closer to the summit). This pattern is analogous to the latitudinal gradient and is known as the altitudinal gradient of biodiversity. Similar to latitude, environmental conditions like temperature, precipitation, and habitat complexity change with altitude, generally becoming less favorable for biodiversity at higher elevations.
Therefore, Reason (R) is correct.
Evaluating the Explanation
The question asks if Reason (R) correctly explains Assertion (A). While both statements describe similar trends (biodiversity decreasing with increasing latitude or altitude), the underlying drivers, although related (e.g., temperature, energy), are not identical and operate at different scales. The latitudinal gradient is primarily driven by global energy balance and climate zones, whereas the altitudinal gradient is driven by local changes in elevation. One phenomenon does not directly explain the other, though they are comparable ecological patterns.
Therefore, Reason (R) is correct, but it does not provide the correct explanation for Assertion (A).
Conclusion
Based on the analysis:
- Assertion (A) is correct.
- Reason (R) is correct.
- Reason (R) is NOT the correct explanation of (A).
This corresponds to Option B.
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In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
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Important Questions from Mixed Topic (CUET PG)
- Kalpsutra, the illustrated canonical text is from:-
- The Harappan city almost exclusively devoted to craft production was-:
- Mohandas Karamchand Gandhi launched quit India movement after the failure of:-
- The "Objectives Resolution" was introduced in constituent assembly by:-
- Who among the following was not a member of the constituent assembly:-
