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Explain the oxygen cycle in nature....

Explain the oxygen cycle in nature.

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ICSE-ECOSYSTEMS-PRACTICE QUESTINS (SHORT ANSWER TYPE- II QUESTIONS)
  1. Distinguish between first order consumers and second order consumers.

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  2. Explain the oxygen cycle in nature.

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  3. What is pyramid of energy? What are its characteristics?

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  4. Give a graphic representation of phosphorus cycle in nature.

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  5. Write a note on pyramid of numbers.

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  6. Briefly enumerate the various types of ecological efficiencies.

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  7. What is 10% law? Describe it in relation to transfer of energy in an e...

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  8. Discuss briefly the abiotic components of an ecosystem.

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  9. Describe pond as an ecosystem.

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  10. Write a short note on trophic levels.

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  11. Define the pyramid of biomass.

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  12. Describe the structural features of an ecosystem.

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  13. What is meant by ecological succession ? Explain how it occurs . W...

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  14. Explain Serarch succession, highlighting the seral communities.

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  15. Explain with the help of two examples, how the pyramid of numbers and ...

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  16. Give differences between seral and climax community during succession.

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  17. Briefly describe the processes and products of decomposition.

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  18. What is nutrient cycling? Write its significance.

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  19. Explain the meaning of 10% law.

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  20. What is the difference between a grazing food chain and a detritus foo...

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