The population has become a real threat all over in India. 9 cities have already occupied the list of top populated cities all over the world. This increases in pollution and several other things. The only possibility to overcome pollution and enjoy sound health is by growing more trees. Several trees can grow to some extent in 7 to 10 years. Most of these trees are capable of absorbing the toxic pollutants present in the atmosphere and purify the air. If you are concerned about the environment, one best thing that you can do is planting the right tree. Here is a list of trees that will help to save the environment and grow fast.