Which of the Following Statements About Ultraviolet Radiation Is TRUE

question 31

Multiple Choice

Which of the following statements about ultraviolet radiation is TRUE?

• A) It's best to avoid outdoor activity in the late afternoon because the sun's rays are most intense after 3 p.m.
• B) Swimming is a good choice of outdoor activity because ultraviolet rays cannot penetrate water.
• C) Sand reflects ultraviolet radiation, so beach-goers need to wear sunscreen even if they sit under a beach umbrella.
• D) You do not need to wear sunscreen when outdoors at high elevations because the atmosphere at high altitude filters out most ultraviolet radiation.

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Definitions:

Multiplier

An economic factor that quantifies the additional effect on income or output resulting from an injection of spending.

Deflationary Gap

A situation in economics where actual production is lower than the potential output level, often resulting in unemployment and unused productive capacity.

Equilibrium GDP

The level of Gross Domestic Product where aggregate supply equals aggregate demand in an economy.

Full Employment GDP

The output level produced by the economy when all available resources are efficiently employed, representing potential GDP under full employment.