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How did antisparrow army eradicated spar...

How did antisparrow army eradicated sparrows? Is it right decision?

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VGS PUBLICATION-BRILLIANT-OUR ENVIRONMENT-EXERCISE
  1. Which pyramid is always upright ? Why?

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  2. Why anti sparrow army established in 1958 at china?

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  3. How did antisparrow army eradicated sparrows? Is it right decision?

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  4. Were the sparrows really responsible? What was the reason for the fall...

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  5. Explain in brief about the alternate methods to be followed to prevent...

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  6. Microbes can be used to decrease the use of chemical fertilisers and p...

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  7. In a grassland ecosystem, some students are trying to kill the grassho...

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  8. Write what friendly ecosystem activities you will conduct in you scho...

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  9. If we introduce a man into a forest ecosystem, at which level of food ...

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  10. "All the energy in the ecosystem in ultimately derived from sunlight."...

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  11. How sparrows are really helpful to farmers in china?

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  12. Complete the blanks. The entering of pollutants in a food chain is c...

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  13. Among the following pairs, in which one from first species to second s...

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  14. The continent without forests .

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  15. The correct sequence of a food chain. (A) PlanttoggrasshoppertoFrogt...

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  16. Identify the correct one from the following food chains.

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  17. The region of Biosphere reserve which is legally protected and where n...

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  18. What are the climatic influences that determine the ecosystem ?

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  19. The arrows between each item in a food chain always point from

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  20. "Niche" denotes

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