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Who introduced 'Ecological pyramids'?...

Who introduced 'Ecological pyramids'?

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VGS PUBLICATION-BRILLIANT-OUR ENVIRONMENT-EXERCISE
  1. What are pesticides?

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  2. What is a perfect pesticide?

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  3. Who introduced 'Ecological pyramids'?

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  4. How can we draw a food chain?

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  5. How many types of ecological pyramids are there in practice? Name them...

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  6. Which process helps to convert the solar energy into suitable form of ...

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  7. What limits the number of trophic levels in a fooc chiain?

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  8. State one reason to justify the position of man at the apex of most fo...

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  9. Which food chains are advantageous in terms of energy?

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  10. Construct a food chain composing the following : Snake, Hawk, Rats, Pl...

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  11. Which of the following will have the maximum concentration of harmful ...

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  12. Prepare two slogans to consere water.

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  13. By taking two plants of your surroundings as examples, explain how the...

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  14. Write any 4 slogans on the necessity of forests and on their conservat...

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  15. How does the given below concepts differs? (a) Bioaccumulation (b)...

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  16. How does the given below concepts differs? (a) Bioaccumulation (b)...

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  17. The biomass of a producers in an ecosystem is calculated as 3500 kgs. ...

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  18. The organisms which are not represented in ecological pyramids are

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  19. Draw a flow chart to describe the process of bioaccumulation and bio m...

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  20. List out some human activities which altered the communities of plants...

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