why are spices of animals and birds get extinct
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Answer:Animals and birds extinctions may be caused by natural occurrences such as climatic heating or cooling or changes in sea levels. In more modern times, however, human activity has been to blame. Habitat destruction as farming land expands and forests are cut-down is the main cause of modern extinctions, along with pollution, the introduction of alien species, and over fishing or hunting. Increasingly, however, climate change is thought to be driving extinctions.
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Species become extinct because of
- Climate changes
- competition with other species
- reduced food supply
Mostly extinctions happen over a fairly long period of time
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