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प्रश्न
Define Eutrophication.
उत्तर
Eutrophication: The process by which a body of water enriched in dissolved nutrients (such as phosphates) that stimulates the growth of aquatic algae usually resulting in the depletion of dissolved oxygen.
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संबंधित प्रश्न
Mention the kind of biodiversity of more than a thousand varieties of mangoes in India represent. How is it possible?
Define Hotspots
Very Short Answer Type Question:
Name the animal which is called the ship of desert.
Find the group having only marine members.
Why do we find a decrease in biodiversity distribution, if we move from the tropics towards the poles?
Assertion (A): A stable biosphere has to be conserved.
Reason (R): The loss of biodiversity affects land, water, air, etc.
Give reason for the following.
Stable biosphere has to be conserved.
Write the binomials of
- Man
- Tapeworm
What is the difference between endemic and exotic species?
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.
