A Lack of Ozone Is Dangerous Because Ozone

question 23

Multiple Choice

A lack of ozone is dangerous because ozone:

• A)is a reserve for oxygen that we breathe
• B)cools the Earth
• C)filters out dangerous ultraviolet rays
• D)triggers the development of clouds

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Definitions:

Dividend Yield

A financial ratio indicating how much a company pays out in dividends each year relative to its stock price.

Total Return

The overall financial gain or loss on an investment over a specified time period, including both capital gains and interest or dividends.

Indifference Curves

Graphical representations used in microeconomics to show different combinations of two goods that give a consumer the same level of satisfaction.

Standard Deviation

A metric that quantifies the spread or diversity among a collection of numbers.