Which of the following is the most important cause for animals and plants being driven to the extinction?

  • Option 1)

    Habitat loss and frangementation

  • Option 2)

    Drought and floods

  • Option 3)

    Economic exploitation

  • Option 4)

    Alien species invasion

Answers (2)

 

Causes of biodiversity losses -

The accelerated rates of species extinctions that the world is facing now are largely due to human activities. There are four major causes (‘ The Evil Quartet ’ is the sobriquet used to describe them).

- wherein

1. Habitat loss and fragmentation
2. Over-exploitation:
3. Alien species invasions:
4. Co-extinctions

 

 

 

The major causes of the biodiversity loss include habitat loss and fragmentation, alien species invasion, climate change, economic exploitation natural disasters like drought, floods, etc. Among these , the most important cause of extinction is habitat loss and fragmentation. It is caused by deforestation, overpopulation, pollution and global warming. Habitat loss distrups the complex interactions among the species and also kill or force out many plants. With the fragmentation of forest, the species occupying deeper parts are first to disappear.


Option 1)

Habitat loss and frangementation

Option 2)

Drought and floods

Option 3)

Economic exploitation

Option 4)

Alien species invasion

habitat loss and fragmentation

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