1. Loss of habitat.
2. Trees that provide food and shelter to so many species are destroyed due to human intervention.
Over hunting and poaching:
Large number of animals is hunted for their horns, skin, teeth and many other valuable products.
3. Pollution:
- Number of animals are affected by pollutions like air pollution and water pollution.
- In the recent years more number of animals is affected by wastes in the form of plastic.
4. New habitat:
- Sometimes animals are taken by people to new habitat where they do not naturally live.
- Some, of them may extinct and some may survive
- The new ones may also get attacked by the species already living there and cause their extinction.
5. Chemicals:
- We use pesticides and other chemicals to get rid of damaging insects, pests or weeds.
- But they can also poison desired plants and animals if we do not use them correctly.
6. Diseases: Diseases due to various unknown reasons may affect the animals and make them extinct.
7. Natural calamities: Animals may also be destroyed due to natural disasters like flood and fire.
