Answer: Option (A) is the correct answer.
Step-by-step explanation:
Deforestation means the cutting of trees, forests and plants in order to use the land for making buildings, hospitals, houses etc.
Since, many animals and birds live in forests and plants so, when deforestation or farming occurs their habitat gets destroyed. Hence, they have to move towards another place in search of shelter.
Thus, we can conclude that loss of habitat is an environment effect of deforestation and farming.