Animal life is also affected by deforestation. 

Concept: Deforestation is cutting down of trees. 

Deforestation affects animals in many ways. It causes habitat (place where animals live) destruction, increased risk of predation (place for the animals to hide themselves is reduced), reduced food availabilities. As a result, some animals lose their homes, few lose food sources and finally, many lose their lives. In fact, deforestation is one of the main causes of extinction of animals.

Hence, the correct answer is A.