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Solution


Q.

Which of the following is/are cause(s) of biodiversity losses                  [2023]
1 Over-exploitation, habitat loss and fragmentation  
2 Climate change only  
3 Over-exploitation only  
4 Habitat loss and fragmentation only  

Ans.

(1)

There are four major causes of biodiversity losses which are collectively called as the evil quartet. These are habitat loss and fragmentation, over-exploitation, alien species invasion and co-extinctions. However, other factors are also intensifying extinctions like disturbance and degradation, pollution, intensive agriculture and forestry.