प्रसार शिक्षा का कौन-सा मूल सिद्धांत इस बात पर बल देता है कि प्रसार लोगों को स्वयं अपनी सहायता करने में मदद करता है?

A good agricultural extension programme should fundamentally be:

__ is the systematic process by which the effectiveness, progress, and impacts of an extension programme are assessed.

Extension teaching is characterized as a form of ____________ because it focuses on changing knowledge, attitudes, and skills in informal settings.