What are the slogans for protecting the campus environment?

The slogans for protecting the campus environment are:

1. Build a green campus together and enjoy the singing of birds and the fragrance of flowers.

2. You wave your sleeves and don’t take away a single cloud. I move my hands without leaving any scraps of paper.

3. If garbage does not fall to the ground, the campus will be more beautiful.

4. Keep the campus clean, beautiful, healthy and civilized in your mind.

5. Protect the environment, talk less and do more, and make the campus a green palace.