स्कूल परिवेश के भीतर निम्नलिखित में से कौन सा 'लघु संस्कृति' या 'लघु समाज' को दर्शाता है?

The true essence and indicator of an effective, functional classroom is:

If most of the students in a class are frequently found dozing or inattentive, what could be the potential reason?

Which of the following should be given importance to improve the physical environment of a classroom?