During a thunderstorm, lightning and thunder occurred simultaneously in the atmosphere. An observer on the earth surface's sees the lightning flash shortly before hearing the thunder. This is because the
A.
atmospheric pressure is higher at the surface than at the higher altitudes
B.
speed of sound is less than that of light
C.
temperature of the atmosphere decreases with altitude
D.
atmospheric density decreases with altitude
Correct Answer: Option B
Explanation
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