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Name the fossil fuels and greenhouse gas...

Name the fossil fuels and greenhouse gases.

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Petroleum, coal and natural gas are fossil fuels. `CO_(2)`, methane, CFCs, nitrous oxide and water vapour are some of the greenhouse gases.
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PRADEEP-ECOSYSTEM-short answer question
  1. In what way are the short-wavelength radiations harmful ?

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  2. What is denitrification?

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  3. Name the fossil fuels and greenhouse gases.

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  4. Which regions of the biosphere lack life ?

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  5. When did oxygen started collecting in the atmosphere ? What is its per...

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  6. List the processes involved in nitrogen cycle.

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  7. Industries cause rise as well as fall in the temperature of biosphere....

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  8. Differentiate between a detritivore and a decomposer giving an example...

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  9. State the difference between the first trophic levels of detritus food...

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  10. Name the pioneer and the climax species in a water body. Mention the ...

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  11. Match the items given in column I with appropriate items (one or more)...

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  12. Name the type of food chains responsible for the flow of larger fracti...

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  13. The number of trophic levels in an ecosystem are limited. Comment.

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  14. What is net primary productivity ?

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  15. Distinguish between upright and inverted pyramid.

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  16. Why the pyramid of energy is always upright ? Explain.

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  17. Differentiate between two different types of pyramids of biomass with ...

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  18. Construct an age pyramid which reflects a stable growth status of huma...

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  19. How are productivity, gross productivity, net primary productivity and...

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  20. Define an ecosystem. Give a few instances of an ecosystem.

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