Home
Class 11
CHEMISTRY
Why does water covered with excessive al...

Why does water covered with excessive algal growth become polluted ?

Text Solution

Verified by Experts

Presence of excessive algal growth shows that water contains a lot of phosphate due to inflow of fertilizers, etc., from the surroundings. Hence, such a sample of water is polluted.
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL POLLUTION

    MODERN PUBLICATION|Exercise REVISION EXERCISES (Objective/Very Short Answer Questions ( Passage Based Questions ))|5 Videos

  • ENVIRONMENTAL POLLUTION

    MODERN PUBLICATION|Exercise REVISION EXERCISES (Objective/Very Short Answer Questions ( True or False Questions ))|10 Videos

  • ENVIRONMENTAL POLLUTION

    MODERN PUBLICATION|Exercise NCERT FILE ( NCERT EXEMPLAR PROBLEMS(Matching Type Questions ) )|1 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Unit Practice Test|13 Videos

Similar Questions

Explore conceptually related problems

When atmosphere become polluted

Inundation - to cover with excess of water

Why does the bosy deaminate excess amino acids ?

Why does a glass rod coated with wax not becomes wet when dipped in water?

Why does ice oat in water ?

Excessive growth of dinoflagellates produces

MODERN PUBLICATION-ENVIRONMENTAL POLLUTION -NCERT FILE ( NCERT EXEMPLAR PROBLEMS(Multiple Choice Questions) )
  1. What are the sources of dissolved oxygen in water ?

    Text Solution

    |

  2. What is the importance of measuring BOD of a water body ?

    Text Solution

    |

  3. Why does water covered with excessive algal growth become polluted ?

    Text Solution

    |

  4. A factory was started near a village. Suddenly villagers started feeli...

    Text Solution

    |

  5. Oxidation of sulphur dioxide into sulphur trioxide in the absence of a...

    Text Solution

    |

  6. From where does ozone come in the photochemical smog ?

    Text Solution

    |

  7. How is ozone produced in stratosphere?

    Text Solution

    |

  8. Ozone is a gas hevier than air. Wy does ozone layer not settle down ne...

    Text Solution

    |

  9. Some time ago formation of polar stratospheri clouds reported over Ant...

    Text Solution

    |

  10. A person was using water supplied by Municipality. Due to shortage of ...

    Text Solution

    |

  11. Match the pollution(s) in column I with the effect(s) in column II.

    Text Solution

    |

  12. Match the activity given in Column I with the type of pollution create...

    Text Solution

    |

  13. Match the pollutants given in Column I with their effects given in Col...

    Text Solution

    |

  14. Assertion (A) : Green house effect was observed in houses used to grow...

    Text Solution

    |

  15. Assertion (A) : The pH of acid rain is less than 5.6. Reason (R) : C...

    Text Solution

    |

  16. Assertion: Photochemical smog is oxidising in nature. Reason: Photoc...

    Text Solution

    |

  17. Assertion (A) : Carbon dioxide is one of the important greenhouse gase...

    Text Solution

    |

  18. Assertion (A) : Ozone is destroyed by solar radiation in upper streato...

    Text Solution

    |

  19. Assertion (A) : Excessive use of chlorinated synthetic pesticides caus...

    Text Solution

    |

  20. Assertion: If BOD level of water in a reservoir is less than 5 ppm it ...

    Text Solution

    |