Petition leter.

Dear local authorities, 
Hi, my name is Agustina Ben. I'm 13 years old. I study at Newlands school in Adrogué and we are lerning about the problems in Calcutta.
Among the problems Calcutta has the most important is its gowth: the population grows quickly. The population was almost 7 million in 1970 and 12 million un 2000.And the other problem is  housing: many families have no home. Over  a quarter of million people are forced to live in the open.
I write this petition letter in order to help Calcutta people, because they musn't live like this.
In my opinion, you have to give work to people so that they can buy a house and not live in the streets.
Thank for your cooperation.
Agustina Ben.