• Brainly User
I think cleanliness is also one of the part in national development.i think so because the cleanliness also shows to others how clean we are and how rich we are .not only it helps in the national development it also helps us in the health and we should encourage them by giving slogans .some of slogans are
1.clean and green is our perfect dream
2.keep your city clean and green for the future generations to be seen
3.yesterday we smoked the green today we keep it clean
4.dont be as a litterbug just give tree a hug