Biodiversity and its Conservation Question 41
41. Which of the following is the most important cause for animals and plants being driven to extinction?
[2019]
(a) Habitat loss and fragmentation
(b) Drought and floods
(c) Economic exploitation
(d) Alien species invasion
Show Answer
Answer : a
Hints & Solutions
(a) Habitat loss and fragmentation are the most important cause for animals and plants being driven to extinction. Habitats of various organisms are altered or destroyed by uncontrolled and unsustainable human activities (such as deforestation, slash and burn agriculture, mining, and urbanisation). This will lead to breaking up of the habitat into small pieces, which effect the movement of migratory animals and also, decrease the genetic exchange between populations leading to a declination of species.
