Second-level activities is something to do with manufactoring (or the large-scale production of goods by hand or by machine). Turning corn crops into corn flakes for your cereal is one example of second-level activities.
Turning corn crops into cereal
iron mining
secondary activity
economic activity involving the processing of raw materials
Manufacturing
i believe that the levels of economic activity is 1.primary activity 2.secondary activity 3.tertiary activity 4.quaternary activity
Botanically wood is secondary xylem produced after secondary growth through the activity of cambium.
primary economic activity is when you take or use natural resources directly from the earth.for example:mining, logging, drilling for oil, fishing, and farming. Secondary economic activity is when you use raw materials to produce something new. for example: John Morells, Carpenter
For primary activity the examples are cotton, copper, and iron. For secondary activity the examples are pencil, jacket, sweatshirt, and backpack. Tertiary activity involve in service, and the examples are doctor, and nurse.
beer brewing
secondary xylem and phloem.
23
economic activity involving the processing of raw materials