Your Ears "Pop" When You Ascend to Higher Altitudes Because

question 95

Multiple Choice

Your ears "pop" when you ascend to higher altitudes because

• A)air pressure is greater at higher altitudes.
• B)air temperature is lower at higher altitudes.
• C)air pressure is lower at higher altitudes.
• D)air is dryer at higher altitudes.

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Definitions:

Barter Economy

An economic system where goods and services are exchanged directly for other goods and services without using money as an intermediate.

Medium of Exchange

An instrument used to facilitate the sale, purchase, or trade of goods between parties, for example, money or digital currency.

Planned Economy

An economic system in which the government or a central authority makes all decisions regarding the production and distribution of goods and services.

Barter Economy

An economic system where goods and services are exchanged directly for other goods and services without the use of money.