Match each example to the appropriate term.

a. Trees used to make paper
1. Human capital
2. Technological knowledge
3. Physical capital

b. A printing press used to make books.
1. Human capital
2. Technological knowledge
3. Physical capital

c. A method of organizing workers to increase production per hour.
1. Human capital
2. Technological knowledge
3. Physical capital

d. The skills workers learn during a training session.
1. Human capital
2. Technological knowledge
3. Physical capital