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By what method can the quantity of organ...

By what method can the quantity of organic pollutants in water be determined?

A

pH measurement

B

Measuring BOD

C

Measuring change of colour

D

Transparency measurements

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The correct Answer is:
B
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GRB PUBLICATION-ENVIRONMENTAL ISSUES-Assertion & Reason Type Questions
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  3. (A) : A niche is the evolutionary result of a species adaptations to i...

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  4. (A) : Dormancy in animals through a dry season is called hibernation. ...

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  5. (A) : Freshwater animals cannot live long in sea water. (R) : They w...

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  6. (A) : Light is an important abiotic factor. (R) : Life is not possib...

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  7. (A) : The spectral quality of solar radiation is important for life. ...

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  8. (A) : Plants can make use of only capillary water. (R) : It is prese...

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  9. (A) : Interspecific competition is a potent force in organic evolution...

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  10. (A) : Brood parasitism is a social parasitism among birds. (R) : Koe...

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  11. (A) : Decomposition is largely an oxygen requiring process. (R) : D...

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  12. (A) : The series of organisms eating one another form the food chain. ...

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  13. (A) : The successful establishment of a species in a bare area is call...

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  14. (A) : Food chains are interconnected at various trophic levels to form...

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  15. (A) : The concept of ecological pyramid was developed by Arthur Tansle...

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  16. (A) : Nutreints are never lost from the ecosystems (R) : They are re...

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  17. (A) : The availability of light on land is closely linked with that of...

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  18. (A) : The success of mammals is largely due to their ability to mainta...

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  19. (A) : Small animals have a larger surface area relative to their volum...

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  20. (A) : Many desert plants keep their stomata closed during day time. ...

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  21. (A) : Mycorrhizae represent an intimate mutualistic relation between a...

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