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dB is a standard abbreviation used for t...

dB is a standard abbreviation used for the quantitatve expression of

A

A certain pesticide

B

The density of bacteria in a medium

C

A particular pollutant

D

The dominant Bacillus in a culture.

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ALLEN-ORGANISM & ENVIRONMENT AND DEMOGRAPHY-EXERCISE-II
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  2. Which two of the following changes (i-iv) usually tend to occur in the...

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  3. dB is a standard abbreviation used for the quantitatve expression of

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  4. Study the four statements given below and select the two correct ones ...

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  5. The given figure is a diagrammatic representation of response of organ...

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  8. When domestic sewage mixes with river water

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  9. Which one of the following is most appropriately defined ?

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  10. The Indian Rhinoceros is a natural inhabitant of which one of the I...

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  11. According to Euro - IV norms , the quantity of sulphur in petrol and d...

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  12. Crustose lichens, those invaded barren bland, first of all, are:-

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  13. Mass of living matter at a trophic level in an area at any time is cal...

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  14. Eutrophication is often seen in

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  16. Which one of the following pairs of gases are the major cause of "Gree...

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