Home
Class 12
BIOLOGY
Which of the mass extinctions are though...

Which of the mass extinctions are thought to be manmade.

A

7th

B

6th

C

5th

D

4th

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • 2019 QUESTION PAPER

    SHARAM PUBLICATION|Exercise EXERCISE|23 Videos

  • BIOLOGY AND HUMAN WELFARE

    SHARAM PUBLICATION|Exercise EXAMPLE|174 Videos

Similar Questions

Explore conceptually related problems

Which of the extinctions are rare :

Following mass extinctions , recovery to the same level of biodiversity has taken __________________

Assertion : Over-exploitation of a species reduces the size of its population eventually leading to its extinction. Reason : Steller's sea cow is a large, herbivorous, terrestrial mammal which is on the verge of extinction due to over exploitation. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Anthropogenic extinction is causing the ' sixth extinction ' . It is ______________ times more faster than the extinction which occurred in pre - human times .

Fill in the blanks: In end-cretaceous mass extinction, a dominant land animal _________ got eliminated.

Dodo became extinct due to :

Which of the following fish led to the extinction of an ecologically unique assemblage of more than 200 species of cichild fish in the lake Victoria of E.Africa ? (a) Catla catla (b) Dog fish (c) Nile perch (d) African catfish

SHARAM PUBLICATION-BIODIVERSITY AND ITS CONSERVATION-EXERCISE
  1. World biodiversity day is celebrated each year on

    Text Solution

    |

  2. Bhitarkanika National Park is famous for

    Text Solution

    |

  3. Which of the mass extinctions are thought to be manmade.

    Text Solution

    |

  4. What is not the criterion to consider biodiversity hot spot?

    Text Solution

    |

  5. First national park of India is

    Text Solution

    |

  6. Which one is a keystone species?

    Text Solution

    |

  7. Which is the international organization not concerned with biodiversti...

    Text Solution

    |

  8. Where was the first project tiger launched in Odisha?

    Text Solution

    |

  9. Which one is a critically endangered organism.

    Text Solution

    |

  10. Correct the statements by changing underlined words only. Species di...

    Text Solution

    |

  11. Correct the statements by changing underlined words only. Alpha dive...

    Text Solution

    |

  12. Correct the statements by changing underlined words only. Genetic di...

    Text Solution

    |

  13. Correct the statements by changing underlined words only. Latitude a...

    Text Solution

    |

  14. Correct the statements by changing underlined words only. Species di...

    Text Solution

    |

  15. Correct the statements by changing underlined words only. Tropical r...

    Text Solution

    |

  16. Correct the statements by changing underlined words only. Introducti...

    Text Solution

    |

  17. Correct the statements by changing bracketed words only. (Indigenous...

    Text Solution

    |

  18. Correct the statements by changing underlined words only. Extinct sp...

    Text Solution

    |

  19. Correct the statements by changing underlined words only: Ephermeral...

    Text Solution

    |

  20. Correct the statements by changing underlined words only. List of li...

    Text Solution

    |