Home
Class 12
PHYSICS
Often in water bodies subjected to sewag...

Often in water bodies subjected to sewage pollution, fishes die because of the:

A

Foul smell

B

Reduction in dissolved oxygen caused by microbial activity

C

clotting of their giltes by solid substances

D

pathogens released by the sewage

Text Solution

Verified by Experts

The correct Answer is:
2

Microbial activity is increase the BOD of water.
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 10

    CAREER POINT|Exercise PART (B) - CHEMISTRY|30 Videos
  • MOCK TEST 1

    CAREER POINT|Exercise PART (B) - CHEMISTRY|29 Videos
  • MOCK TEST 2

    CAREER POINT|Exercise PART (B)-CHEMISTRY|29 Videos

Similar Questions

Explore conceptually related problems

Sewage containing organic waste should not be disposed in water bodies because it cause water pollution. Fishes in such a polluted water die because of

Fish die in water bodies polluted by sewage due to

Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of

Fishes die in water bodies polluted by swage due to :

CAREER POINT-MOCK TEST 10-PART (B) - CHEMISTRY
  1. Which of the following can react with both HCl and NaOH ?

    Text Solution

    |

  2. Which of the following solid has maximum melting points?

    Text Solution

    |

  3. The catalyst used in the manufacture of polyethylene Zeigler method is...

    Text Solution

    |

  4. The product C is -

    Text Solution

    |

  5. Iodine is powerful antiseptic. It is used as a tincture of iodine whic...

    Text Solution

    |

  6. Two elemets X( atomic weight =75) and Y( atomic weight =16) combine to...

    Text Solution

    |

  7. The value of the spin only magnetic moment for one of the following co...

    Text Solution

    |

  8. An element X (At,wt = 80 g//mol) having fcc structure, calculate the n...

    Text Solution

    |

  9. Which of the following donot give Cannizzaro reaction ?

    Text Solution

    |

  10. Consider the following reactions, The end product 'S' is -

    Text Solution

    |

  11. The IUPAC name of CH(3)-underset(COOC(2)H(5))underset(|)(C)=CH-CH(2)-o...

    Text Solution

    |

  12. The order of leaving group ability is .^(-)underset((I))(OAc).^(-) u...

    Text Solution

    |

  13. Often in water bodies subjected to sewage pollution, fishes die becaus...

    Text Solution

    |

  14. A solution containing 500 g of a protein per liter is isotonic with a...

    Text Solution

    |

  15. Calculate partial pressure of B at equilibrium in the following equili...

    Text Solution

    |

  16. What is the melting point of benzene if DeltaH("fusion")= 9.95kJ//mol ...

    Text Solution

    |

  17. D(2)O(Heavy water)" and "H(2)O differ in following except -

    Text Solution

    |

  18. Carborundum is -

    Text Solution

    |

  19. If degree of dissociation of 2M CH(3)COOH is 10% then degree of disso...

    Text Solution

    |

  20. The solubility in terms of K(sp) "for " A3B((aq)) is

    Text Solution

    |