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Which one of the following is a wrong st...

Which one of the following is a wrong statement?

A

Greenhouse effect is a natural phenomenon

B

Eutrophication is a natural phenomenon in freshwater bodies.

C

Most of the forests have been lost in tropical areas

D

Ozone in upper part of atmosphere is harmful to animals.

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ALLEN-ORGANISM & ENVIRONMENT AND DEMOGRAPHY-EXERCISE-II
  1. The upright pyramid of number is absent in

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  2. Which one of the following is not a gaseous biogeochemical cycle in ec...

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  3. Which one of the following is a wrong statement?

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  4. The highest number of species in the world is represented by

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  5. Given below is an imaginary pyramid of numbers. What could be one of t...

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  6. Identify the possible link ''A'' in the following food chain Plant ...

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  7. Measuring Biochemical Oxygen Demand (BOD) is a method used for

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  8. People who have migrated from the planes to an area adjoining Rohta...

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  9. The second stage of hydrosere is occupied by plants like

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  10. Identify the likely organisms (A), (B), (C ) and (D) in the food web s...

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  11. in gobar gas ,the maximum amount is of

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  12. Select the correct statement about biodiversity.

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  13. Cuscuta is an example of a

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  14. Sacred groves are useful in

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  15. The rate of formation of new organic matter by rabbit in a grassland, ...

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  16. The domestic sewage in large cities

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  17. Which of the following shows maximum genetic diversity in India ?

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  18. Which of the following statements is correct?

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  19. Kasmiri stag is also known as:-

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  20. A sedentary sea anemone gets attached to the shell lining of hermit cr...

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