sentence: Secondly , public transport is better for the environment than using cars because a bus has more space than a car and many people can go on a bus , thus decreasing the amount of pollution and helping the environment .
modified: Secondly public transport is better for the environment than using cars because a bus has more space than a car and many people can go on a bus thus decreasing the amount of pollution and helping the enviromnent .
transformation: PUNCT, PUNCT, SPELL