Why Is the Sky Blue

question 141

Multiple Choice

Why is the sky blue?

• A) The air molecules absorb red light more effectively than blue light, allowing more blue light to reach observers on Earth's surface.
• B) The air molecules scatter blue light more effectively than red light, so more blue light reaches observers on Earth's surface indirectly (from directions other than the direct beam of sunlight).
• C) The air molecules scatter red light more effectively than blue light, so less red light reaches observers on Earth's surface indirectly (from directions other than the direct beam of sunlight).
• D) The air molecules absorb blue light more effectively than red light, making the sky appear bluer.

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Definitions:

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An equation that assigns a level of utility or satisfaction to each bundle of goods, allowing for comparisons of consumer preferences.

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