-I think we should write on both sides of the paper.
- I think we should save plastic bags, clean and reuse them.
- I think we shouldn't throw wastes and garbage into streams, lakes and even oceans.
- I think we should discard/ throw garbage in waste bins.
- I think we should use less private vehicles and don't release pollutants into the air.
- I think we should try to re-use and recycle things.
xin hay nhất cho nhóm ạ
