Explanation:

- Tertiary Sector:

- Also known as the service sector.

- Involves services rather than goods.

- Examples: retail, transportation, entertainment.

- Primary Sector:

- Deals with the extraction of raw materials.

- Examples: mining, agriculture, fishing.

- Secondary Sector:

- Involves manufacturing and production.

- Transforms raw materials into goods.

- Agriculture:

- Part of the primary sector.

- Specifically deals with farming and related activities.

Your understanding is correct! The service sector is indeed also called the "Tertiary Sector."

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