Write a paragraph about the ways to keep the environment clean

`->` Today, there are many the ways to keeep the enviroment clean. First of all, we should put trash in right place. The example, you do not litter indiscriminately, put trash in the trash can. Second, every person should be conscious of preserving and cleaning the environment. When you have free time, sort your trash. Final, participate in activities and campaigns to clean the environment. Encourage relatives and friends to participate. It could be a cleaning activity at a park, neighborhood or school,... In conclusion, above are `3` ways that I think can clean up the environment.