What are the three main types of resources used for making, selling, and using goods and services?

a. soil, water,air
b. money, barter, credit
c. natural, human, capital
d. gold, silver, broze

c.

The three main types of resources used for making, selling, and using goods and services are natural resources, human resources, and capital resources.

To arrive at this answer, we can break down each option:

a. Soil, water, air: While these are indeed important resources for various industries such as agriculture and manufacturing, they do not encompass the full range of resources needed for making, selling, and using goods and services.

b. Money, barter, credit: Money, barter, and credit are methods of exchange rather than the actual resources used in production. While money can be considered a type of financial resource, it does not cover the full scope of resources required.

c. Natural, human, capital: This option includes all three main types of resources. Natural resources include materials from the earth, such as minerals, forests, and water sources. Human resources refer to the labor and skills provided by individuals. Capital resources comprise goods that are used to produce other goods or services, such as tools, machinery, and buildings.

d. Gold, silver, bronze: While precious metals like gold, silver, and bronze have been historically used as mediums of exchange, they do not encompass the full range of resources required for production.

Hence, the correct answer is c. natural, human, capital.