We See the Sky as Blue in the Middle of the Day

question 2

Multiple Choice

We see the sky as blue in the middle of the day because of

• A)nonselective scattering.
• B)atmospheric transmittance.
• C)Rayleigh scattering.
• D)atmospheric absorption.

---

Definitions:

Blood Pressure

The pressure of circulating blood against the walls of blood vessels, important for diagnosing cardiovascular health.

Sample Size

The number of observations or data points collected in a statistical sample.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the values are from the mean.

Power Of Test

The probability that a statistical test will reject a false null hypothesis, correctly identifying a true effect.