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Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Remote sensing can accurately assess crop health and nutrient levels in rainfed agricutture.
Reason (R) : Remote sensing technology enables the analysis of spectral reflectance from crops, which correlates with their
health status and nutrient content.
In light of the above statements, choose the most appropriate answer from the options given below
EXPLANATION
In-Situ Water Harvesting, Conservation Tillag
- Assertion (A) is Correct: Satellite and airborne remote sensing platforms provide rapid, non-destructive, and spatially comprehensive assessment of crop health, vegetative vigour, and nitrogen status in rainfed agroecosystems.
- Reason (R) is Correct: Distinct spectral reflectance signatures (high green reflectance, strong red chlorophyll absorption, and intense NIR scattering by spongy mesophyll) allow vegetation indices (such as NDVI, GNDVI, NDRE) to correlate strongly with leaf chlorophyll and nitrogen concentrations.
- Relationship: Both statements are accurate, but remote sensing also encounters limitations from cloud cover, mixed pixels, and soil background reflectance in rainfed conditions, making Reason (R) an associated mechanism rather than the absolute cause.
- Conclusion: Both (A) and (R) are correct but (R) is NOT the correct explanation of (A) (Option 2).
Explanation not matching this question?
क्या व्याख्या इस प्रश्न से मेल नहीं खा रही?
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