Under most circumstances the density ________ with increasing altitude.
A) decreases
B) increases
C) remains constant
Correct Answer:
Verified
Q18: A difference in air density can cause
A)refraction.
B)reflection.
C)scattering.
D)absorption.
Q19: Which of the following is defined as
Q20: In its path from the top of
Q21: Where are rainbows located?
A)always just above the
Q22: A mirage that forms with warm air
Q24: The optics of rainbow formation involve
Q25: How does the length of twilight vary
Q26: When the Sun is positioned slightly below
Q27: Explain how,where,and when the green flash occurs.
Q28: Which of the following is NOT associated
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