Home
Class 12
BIOLOGY
How effluent is treated in secondary tre...

How effluent is treated in secondary treatment?
(A) Effluent is passed in aeration tank
(B) Effluent is constantly agitated
(C) Air is pumped
(D) All of the above

A

Effluent is passed in aeration tank

B

Effluent is constantly agitated

C

Air is pumped

D

All of the above

Text Solution

Verified by Experts

The correct Answer is:
D
All of the above
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    KUMAR PRAKASHAN|Exercise SECTION - F MULTIPLE CHOICE QUESTIONS(MCQS ASKED IN COMPETITIVE EXAM)|56 Videos

  • MICROBES IN HUMAN WELFARE

    KUMAR PRAKASHAN|Exercise SECTION - E SOLUTION OF NCERT EXEMPLAR (LONG ANSWER TYPE QUESTIONS)|8 Videos

  • HUMAN REPRODUCTION

    KUMAR PRAKASHAN|Exercise SECTION-F MULTIPLE CHOICE QUESTIONS|118 Videos

  • MODEL QUESTION PAPER FOR ANNUAL EXAM

    KUMAR PRAKASHAN|Exercise Part- B ( Section C)|4 Videos

Similar Questions

Explore conceptually related problems

What is included in IPM ? (A) Bio control (B) Bio fertilizer (C) Tissue culture (D) All of the above

Biotechnology can also be used in developing (A) Bioweapons (B) Highly infectious pathogens (C) Disease resistant pathogen with marked virulence (D) All of the above

Sewage treatment plant is used to control which type of pollution ? (A) Soil (B) Land (C) Water (D) Air

Product of biotechnology is (A) Transgenic crop (B) Biofertilizer (C) Humulin (D) All of the above

Steroids are used in (A) Treatment of hormonal imbalance (B) Birth control (C) Treatment of autoimmune disease (D) All of above

In what exarch vessel is seen ? (A) Root (B) Stem (C) Leaf (D) All of the above

For which diseases antibiotics are discovered ? (A) Whooping cough (B) Plague (C) Diphtheria (D) All of the above

Which is Gynandromorph type of animal? (A) Drosophila (B) Beetles (C) Silk worms (D) All of the above

KUMAR PRAKASHAN-MICROBES IN HUMAN WELFARE -SECTION - F MULTIPLE CHOICE QUESTIONS(MCQS FROM DARPAN BASED ON TEXTBOOK)
  1. Which substances is known as activated sludge.?

    Text Solution

    |

  2. KVIC is related with : (A) Dairy industry (B) Biogas production (...

    Text Solution

    |

  3. How effluent is treated in secondary treatment? (A) Effluent is passe...

    Text Solution

    |

  4. ...... is found in large number in the dung of cattle. (A) LAB (B)...

    Text Solution

    |

  5. What is used to remove weed in agriculture ? (A) Insecticide (B) Pe...

    Text Solution

    |

  6. Which fungi is associated with mycorrhiza ? (A) Azospirillium (B) G...

    Text Solution

    |

  7. In which part of India fermenting sap from palm tree is used in prepar...

    Text Solution

    |

  8. Less proportion of BOD in water is proportional to...? (A) Proportio...

    Text Solution

    |

  9. Microorganisms live as a symbiotic association in leguminous plant. (...

    Text Solution

    |

  10. IPM is........... (A) Indian Pest Control Management (B) Intimation...

    Text Solution

    |

  11. Brandy is produced with the help of .... (A) yeast (B) bacteria ...

    Text Solution

    |

  12. S- Ensilage is a cattle food. R- Ensilage is made by fermentation ...

    Text Solution

    |

  13. In a biogas plant, what is the depth of the concrete pit? (A) 5 to 7...

    Text Solution

    |

  14. Which of the following statements are true if about microbes ? (P...

    Text Solution

    |

  15. Which of the following is a free-living fungus ? (A) Pseudomonas (B...

    Text Solution

    |

  16. Which chemicals are available in market to remove pest, insects and fu...

    Text Solution

    |

  17. Which bacteria are present in the stomach of the goat? (A) E. coli ...

    Text Solution

    |

  18. From what Quantum-4000 is prepared ? A. Trichoderma B. Streptococcus...

    Text Solution

    |

  19. What is Rhizopus nigricans ?

    Text Solution

    |

  20. Who saves us from the harmful bacteria of the stomach ? (A) Lactospir...

    Text Solution

    |