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    The statements given below indicate key characteristics of a geographical region.A. Contains at least 1500 species of endemic animalsB. Contains at le
    Question

    The statements given below indicate key characteristics of a geographical region.

    • A. Contains at least 1500 species of endemic animals

    • B. Contains at least 1500 species of endemic vascular plants

    • C. Has lost 70% of its original natural vegetation

    • D. Has lost 30% of its original natural vegetation

    Which one of the following combinations represents the correct criteria for declaring an area as a biodiversity hotspot?

    A.

    A and C

    B.

    B and C

    C.

    A and D

    D.

    B and D

    Correct option is B

    A biodiversity hotspot is a region that meets two specific criteria established by Conservation International to be designated as a "hotspot." These criteria are:

    1. Endemism Criterion: The region must contain at least 1500 species of endemic vascular plants. This means that the region must have a large number of plant species that are found nowhere else in the world.

    2. Threat Criterion: The region must have lost at least 70% of its original natural vegetation. This indicates that the area has been severely impacted by human activity or environmental degradation, making it critical for conservation efforts.  

      Explanation of each Statement:

    1. Statement A: Contains at least 1500 species of endemic animals
      This statement is incorrect for a biodiversity hotspot. While the presence of endemic animals is important, the primary criterion for a hotspot is the presence of endemic vascular plants (not animals). The 1500 species of endemic vascular plants is the correct criterion for a biodiversity hotspot, not endemic animals.

    2. Statement B: Contains at least 1500 species of endemic vascular plants
      This statement is correct. As per the criteria for a biodiversity hotspot, a region must have at least 1500 species of endemic vascular plants. This is one of the key defining features of a biodiversity hotspot.

    3. Statement C: Has lost 70% of its original natural vegetation
      This statement is correct. A region must have lost at least 70% of its original natural vegetation to be considered a biodiversity hotspot. This significant loss indicates the region is under great environmental stress, which is a key characteristic of hotspots.

    4. Statement D: Has lost 30% of its original natural vegetation
      This statement is incorrect. The criterion for a biodiversity hotspot is that the region must have lost at least 70% of its original natural vegetation, not just 30%. Losing 30% does not qualify a region as a hotspot by the official definition.

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