A classroom is a place where various activities are going on, where interactions take place, social situations are enhanced and norms are built up in instructional situations. The teacher is often considered to be a manager of the teaching-learning process. She/ he makes efforts to organize teaching-learning resources. The main objective of teaching-learning is to create a conducive classroom environment so that the students learn and grow in more productive ways. Key Points Following are the factors that can affect classroom rhythm:- Availability of drinking water Season of the month and the location of the school Availability of transport facility Rehearsal of the annual day function All these factors affect classroom rhythm as if there is a problem with drinking water or transport facility, students would face problems in coming to school and if the rehearsal of the function is going on then the child would not be able to attend classes regularly. Thus, it is concluded that a, b, c, and d are the correct options.