Hello,everyone ,I am a plastic bag .A lot of people use me to carry things every day . There are many things I can carry ,such as food ,clothes and books .I have a lot of colorful brothers and sisters in the world .People sell us to big or small markets .The keepers of the markets use us to carry things and people can have us with no money .After getting home ,people throw us away .There are is a new rule .People have to buy us .The rule make people use us less or use us to carry other things again .I will not pollute the Earth too much .