Home
Class 12
BIOLOGY
Which of the following is absent in poll...

Which of the following is absent in polluted water?

A

Hydrilla

B

Water hyacinth

C

Larva of stone fly

D

Blue green algae

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION D|15 Videos

  • ENVIRONMENTAL ISSUES

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION B|35 Videos

  • ECOSYSTEM

    AAKASH INSTITUTE|Exercise Section - D (Assertion - Reasion Type questions)|15 Videos

  • EVOLUTION

    AAKASH INSTITUTE|Exercise TRY YOURSELF|29 Videos

Similar Questions

Explore conceptually related problems

Which of the following is absent in frog

Which of the following is absent in a rat

Which of the following is absent in the blood?

Which of the following is absent in prokaryotes

Which of the following is absent in prokaryotes

Which of the following is absent in carnivores?

AAKASH INSTITUTE-ENVIRONMENTAL ISSUES-ASSIGNMENT SECTION C
  1. The maximum biomagnification would be in which of the following in cas...

    Text Solution

    |

  2. What is B.O.D.:-

    Text Solution

    |

  3. Which of the following is absent in polluted water?

    Text Solution

    |

  4. What is the intensity of sound during normal conversation?

    Text Solution

    |

  5. Fluoride polllution mainly affects

    Text Solution

    |

  6. Escherichia coli is used as an indicator organism to determine polluti...

    Text Solution

    |

  7. Lead concentration of blood is considered alarming at

    Text Solution

    |

  8. Which of the following is not used for disinfection of drinking water?

    Text Solution

    |

  9. Which of the following organism is likely to have more concentration o...

    Text Solution

    |

  10. Climate of the world is threatened by

    Text Solution

    |

  11. Which of the following contribute to green house effect?

    Text Solution

    |

  12. The true statement about "greenhouse effect" is that it is caused by:

    Text Solution

    |

  13. Country contributed maximum to hole formation in ozone layer is

    Text Solution

    |

  14. In the coming years, skin related disorders will be more common due to...

    Text Solution

    |

  15. Ozone hole is maximum over

    Text Solution

    |

  16. The supersonic jets cause pollution by thinning of:

    Text Solution

    |

  17. If there was no carbon dioxide in the Earth's atmosphere, the temperat...

    Text Solution

    |

  18. Which important green house gas other than methane is being produc...

    Text Solution

    |

  19. Green house effect refers to

    Text Solution

    |

  20. Maximum green house gases are released by which of the following count...

    Text Solution

    |