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Among the following pesticides which is ...

Among the following pesticides which is less dangerous?

A

DDT

B

Aldrin

C

Dieldrin

D

Heptachlor

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VGS PUBLICATION-BRILLIANT-OUR ENVIRONMENT-EXERCISE
  1. Which of the followin is a secondary consumer in a grassland ecosystem...

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  2. The branch of biology that deals with the study of interactions betwee...

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  3. Among the following pesticides which is less dangerous?

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  4. What steps do you suggets towards prevention from harmful effects of p...

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  5. Are al terrestrial ecosystems similar?

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  6. This shows who eats what is in a particular habitat

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  7. In a food chain, the number of organisms at third trophic level is

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  8. What is the source of energy for all ecosystems?

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  9. The graphic representation of feeding level structure of an ecosystem ...

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  10. In ecological pyramids, producers are represented here

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  11. In ecological pyramids, producers are represented here

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  12. In a food chain the largest population is that of

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  13. Identification of a pollutant as organic, inorganic (or) organometalli...

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  14. Biomass can also be used as a

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  15. This pyramid represents the available food as a source of energy at ea...

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  16. Read the following statements and select the correct option: (a) In...

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  17. "The ratio between energy flows at different tropic levels among the f...

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  18. How the energy flows from producers to consumers in a food chain?

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

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  20. The plant substances which are not digested by most animals are

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