18) Which of the following is CORRECT? Factors of production are
A) land, labor, the price system, and capital.
B) the inputs used to produce goods and services.
C) the fundamental source of abundance.
D) only land and labor.
19) Factors of production include
A) the economic system.
B) land, labor, capital and entrepreneurship.
C) labor and capital (not land, which is fixed).
D) only capital, land, and labor.
20) Factors of production include all of the following EXCEPT ________.
A) machines made in past years.
B) money
C) entrepreneurship
D) a wheat field that is not irrigated
21) Factors of production are grouped into four categories
A) land, labor, capital, entrepreneurship.
B) land, labor, capital, money.
C) land, capital, money, entrepreneurship.
D) labor, capital, money, entrepreneurship.