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Question

Most of the endangered species are victims of which of these following factors?

A
Overexploitation
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B
Habitat loss and fragmentation
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C
Co-extinction
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D
Alien species invasion
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Solution

The correct options are
A Overexploitation
B Habitat loss and fragmentation
C Co-extinction
D Alien species invasion
Extinction can be termed as loss of biodiversity and there four major causes for this. They are:

1) Overexploitation: Overexploitation means harvesting species from the wild at rates faster than natural populations can recover. Overfishing and overhunting are types of overexploitation.

2) Habitat loss and fragmentation: Forest loss and degradation are mostly caused by the expansion of agricultural land, intensive harvesting of timber, wood for fuel and other forest products, as well as overgrazing.

3) Co-extinctions: Coextinction of a species is the loss of a species as a consequence of the extinction of another.

4) Alien species invasion: If a new habitat is similar to the native habitat of an alien species, it may survive and reproduce. It successfully out-compete native organisms for food and habitat, as a result, the increase its population and harm ecosystems in its introduced range


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