Final answer:
Primary activities involve gathering, extracting, or growing raw materials from the earth, while manufacturing activities involve processing these raw materials to create finished products.
Step-by-step explanation:
The activities connected directly to the earth through gathering, extracting, or growing raw materials are known as primary activities. These activities include agriculture, forestry, fishing, and mining. They involve the collection of raw materials from the earth.
On the other hand, manufacturing activities fall into the category of secondary activities. They involve the processing of raw materials collected through primary activities to create finished products.