The Brainliest Answer!
1.We can keep our classroom clean, by not putting waste in the classes.
2.By appointing a leader for this.
3.By making awareness of classroom cleanliness, home cleanliness which leads to the national cleanliness, which motivates the Clean India Campaign. 

Thank you.
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Don't throw the paper on the surface of the classroom. say to your class member don't throw anything in the classroom . throw only in dust bin. class student duty to keep a dust bin in a classroom. and if any classmate throw the chocolate cover say him to please put in the dust bin. if he don't listen  it's our duty to put in the dust bin and after that say to class in charge ..
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