Step 1: Understanding the Question:
Economic activities are grouped into primary, secondary, tertiary and quaternary sectors based on how directly they draw on nature. Primary activities are those that extract or produce raw material straight from the earth.
Step 2: Give two examples.
Agriculture, growing crops on land, is a primary activity because it works directly with soil, water and sunlight to produce food. Mining, digging minerals like coal or iron ore out of the ground, is another primary activity because it takes a natural resource straight from the earth with no processing.
Final Answer:
Agriculture and mining are two examples of primary activities.\[ \boxed{\text{Agriculture, Mining}} \]