The transformation from a plant to a finished product involves three types of economic activities. The word agriculture is derived from the Latin words “ager” or “agri” meaning soil and culture meaning cultivation. NCERT Class 8 Geography Chapter 3: Extra Questionsīrief Notes on NCERT Class 8 Geography Chapter 3 Agriculture.NCERT Solutions Class 8 Geography Chapter 3: Agriculture.NCERT Class 8 Geography Chapter 3 NCERT PDF.Brief Notes on NCERT Class 8 Geography Chapter 3 Agriculture.