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Ecosystem question

2019 · Q43
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Ecosystem question

2019 · Q43

NEETBiologyEcosystemMCQ+4 / −1
Which of the following is the most important cause for animals and plants being driven to extinction?
  1. A
    Economic exploitation
  2. B
    Alien species invasion
  3. C
    Habitat loss and fragmentation
  4. D
    Drought and floods
View written solutionFree

Correct answer: C

Habitat loss and fragmentation is the major cause of biodiversity loss and extinction of plants and animals. Habitat of various organisms are altered or destroyed by uncontrolled and unsustainable human activities such as deforestation, slash, and burn agricultural, mining and urbanisation. This results in the breaking up of the habitat into small pieces, which effects the movement of migratory animals and also, decreases the genetic exchange between populations leading to a declination of species.

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