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प्रश्न
Why do we find a decrease in biodiversity distribution, if we move from the tropics towards the poles?
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उत्तर
There is a decrease in biodiversity as we move from tropics towards poles due to a drop in temperature which makes the condition unfavourable for the majority of organisms to survive.
संबंधित प्रश्न
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Samson and Dorothy surveyed two islands, ‘A’ and ‘B’. They recorded the relevant data in the following format in their research folder:
| Parameter | Island A | Island B | |
| (a) | Area (A) | 45 × 103 Km2 | 12 × 105 Km2 |
| (b) | Regression co-efficient (Z) | 1 | 1 |
| (c) | Y-intercept | 20 | 10 |
- Derive the species-richness for each island.
- Which island exhibits greater biodiversity? Support your answer with a reason.
