The Tremendous Popularity of Mechanical Refrigeration for Household Use in the 1930s

question 17

Multiple Choice

The tremendous popularity of mechanical refrigeration for household use in the 1930s and 1940s stimulated the development of a new series of nonexplosive and nontoxic refrigerants known as of the halogen family.

• A)chlorinated hydrofluorides
• B)chlorofluorocarbons
• C)PCBs
• D)dioxins

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Definitions:

Market Economies

Economic systems in which economic decisions and the pricing of goods and services are guided solely by the aggregate interactions of a country's citizens and businesses.

Line Segment ST

A part of a line that is bounded by two distinct end points, labeled S and T.

Unemployed Resources

Economic resources, including labor, that are not currently in use or employed in the production process.

Macroeconomic Equilibrium

A state in which aggregate supply equals aggregate demand, meaning the economy is at a balance between the total quantity of goods supplied and the total quantity of goods demanded.