A Galaxy Is a Huge Rotating Aggregation of Stars, Dust

question 18

Multiple Choice

A galaxy is a huge rotating aggregation of stars, dust, gas and other debris held together by ____.

• A)nebulae
• B)gravity
• C)moons
• D)vapor

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Definitions:

Diminishing Returns

Diminishing returns is an economic principle stating that as more investments or resources are added to a production process, the incremental gain in output will eventually decrease if all other factors remain constant.

Disguised Unemployment

Situations where more people are employed in a task or job than is necessary for its completion, leading to inefficiency.

Capital Goods

Long-term assets such as buildings, machinery, and equipment purchased by businesses to produce goods and services.

Terms of Trade

The ratio of an index of a country's export prices to an index of its import prices, used to measure the relative trading advantage or disadvantage.