Farmers, ranchers, and other agricultural managers operate their own farms or ranches. They make business decisions about the operation of their farms or ranches, such as what crops to plant, how to raise livestock, and how to sell their products
Heating, air conditioning, and refrigeration mechanics and installers, also called HVACR mechanics, install, service, and repair heating and air conditioning systems in homes, businesses, and other buildings.
Crane & Tower Operators operate cranes and other moving and lifting equipment to load and unload ships, move materials in construction and other industries, and perform other heavy and specialized lifting and transporting work
Biological technicians work in laboratories and other facilities that perform tests on living organisms. They assist scientists in research and development, and may also work in the production of food, drugs, and other products