Air pollution is causes less amount of oxygen present in the air.air pollution is caused by chemical gases present in the air like the gases from the factories,cars and crackers. this items are very bad for the air nowadays people use cars which can produce pollution but that is bad even some people who are environment friendly use eletric cars which is good for the environment so use these type of cars.and stop bursting fire crackers simply but only on festivals you can burst it.And in factories try to use less amount of pollution and because of pollution in the air acid rains are caused which rain out acid. BY:NAVJYOTH SUNIL GRADE:6M FROM:KERALA THANK YOU