Causes

Title: Types of cars that pollute the air

Introduction: Greetings, and welcome to my map story on the cars that pollute the air. I will take you on tour about some gas leaking devices like cars, that damage the earth. They may not be so big, like factories, but remember.. half of the world uses them. That's a lot of gas running into the air. Enjoy my story.

I think it should be issued by middle schoolers because it doesn't only have be concerned by adults. It has effect on everyone so i think we should be able to get involved.