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Biological oxygen demand (BOD) is a meas...

Biological oxygen demand (BOD) is a measure of

A

Industrial wastes poured into water bodies

B

Extent to which water is polluted with organic compounds

C

Amount of carbon monoxide inseparably combined with haemoglobin

D

Amount of oxygen needed by green plants during night

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The correct Answer is:
C
By definition.
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ERRORLESS-ENVIRONMENTAL CHEMISTRY-NCERT BASED QUESTIONS (WATER POLLUTION)
  1. Fishes die by sewage because

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  2. The high amount of E, coli in water is the

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  3. Biological oxygen demand (BOD) is a measure of

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  4. Black-foot disease is caused due to groundwater contaminated with exce...

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  5. B.O.D. is connected with

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  6. Minimata disease first occurred in

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  7. Sewage containing organic waste should not be disposed in water bodies...

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  8. Limit of BOD prescribed by Central Pollution Control Board for the dis...

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  9. Thermal pollution of water bodies is due to discharge of:

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  10. Biological treatment of water pollution is done with the help of

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  11. Polluted water can be purified by using

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  12. Foul smell in the water of tanks, ponds etc. is due to

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  13. Minamata disease was caused due to the consumption of

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  14. Which of the following plant is used for the purification of water

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  15. Which of the following metal is a water pollutant and causes sterility...

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  16. Eutrophication is caused by

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  17. Which one of the following is not a bioindicator of water pollution ?

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  18. The process in which nutrient enriched water bodies support a dense pl...

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  19. Which of the following damages WBC, bone-marrow and lymph nodes

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  20. Biochemical Oxygen Deman, (BOD) is a measure of organic material prese...

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