Occupation is the type of work people do to earn a living. It can be divided into three main types: Industrial Occupation – involves extraction of raw materials and production of goods through farming, mining, and manufacturing. Commercial Occupation – involves buying, selling, and distribution of goods and services to support trade. Tertiary / Service Occupation – provides direct services to individuals and businesses, e.g., teaching, nursing, banking, and transport.

Short Mnemonics:

• I – Industrial Occupation: Jobs that extract raw materials & produce goods (farming, mining, manufacturing)
• C – Commercial Occupation: Jobs that buy, sell, and distribute goods & services (trade, shops, marketplaces)
• T – Tertiary/Service Occupation: Jobs providing direct services to people & businesses (teaching, nursing, banking, transport)

Combined Sentence for Easy Recall:
"Industrial makes goods, Commercial trades them, Tertiary serves people."

Match items with correct category:

• Occupation = type of work to earn a living.
• Industrial = raw materials & production.
• Commercial = buying, selling, distribution.
• Tertiary/Service = provides direct services.