Home
Class 12
BIOLOGY
Assertion: The Biological Oxygen Demand ...

Assertion: The Biological Oxygen Demand (BOD) is high in raw sewage.
Reason: The greater the BOD in waste water, the lesser is its polluting potential.

A

Both Assertion and Reason are correct, Reason is the correct explanation of Assertion

B

Both Assertion and Reason are correct, Reason is not the correct explanation of Assertion

C

Assertion is correct, Reason is wrong

D

Both Assertion and Reason are wrong

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (ANSWER THE FOLLOWING)|19 Videos

  • MICROBES IN HUMAN WELFARE

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (ANSWER THE FOLLOWING)|19 Videos

  • HUMAN REPRODUCTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS ( Answer the following)|37 Videos

  • MOLECULAR GENETICS

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (Answer the following )|29 Videos

Similar Questions

Explore conceptually related problems

Biochemical Oxygen Demand (BOD) in a river water:

Find the odd sentence out. (i) Biogas primarily consists of methane with CO_(2) and hydrogen (ii) the greater the BOD of waste water the more its polluting potential (iii) World biofuel day is observed on 10th August (iv) Cyclosporin A is obtained from Trichoderma polysporum.

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from:

High value of BOD (biochemical oxygen demand ) indicates that:

Assertion : There is a sharp decline in dissolved oxygen downstream from the point of sewage discharge. Reason : Microoganisms ionvolved in biodegradation or organic matter in the receiving water body consume a lot of oxygen.

Assertion : Sewage, industrial effluents and waste water are non-point sources of water pollution. Reason : Surface runoff is point source of water pollution.

Read the following statements and select the correct option. Statement 1 : BOD represents the amount of dissolved oxygen that would be consumed if all the organic matter in one litre of water were oxidised by microorganisms. Statement 2 : High value of BOD indicates that water is highly polluted by organic matter.