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[A] : UV irradiation to disinfect pollu...

[A] : UV irradiation to disinfect polluted waters is not generally recommended .
[R] : It is not effective against most microorganisms

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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  2. [A] : Depletion of ozone layer results in human disease like cancer ....

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  6. [A] : Each food-level in an ecosystem is called trophic level . [R]...

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  7. [A] : Biomonitoring is reliable for determing the pollutants in air ,...

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  9. [A] : Leaf butterfly & stick insect show mimicry to dodge their enemi...

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  11. Assertion (A) : Methane component of greenhouse gases contributing to ...

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  12. Assertion: Suspended particulate matter(SPM) is an important pollutant...

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  13. Assertion : Age sex structure of human population in countries like Fr...

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  14. Assertion (A) : Presently, the global atmosphere is warming up. Reas...

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  15. [A] : Ozone depletion at the south pole will threats world's fisheries...

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  16. [A] : Inquilines can not survive without human care . [R] : Cultige...

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  17. [A] : Problems of ecological environment arise from over population....

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  18. [A] : Social forestry programme is grows trees for fuel , fodder & fru...

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  20. [A] : Population density of indicator organisms show degree of water p...

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