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The apparent random wavering or flickering of objects seen through a turbulent stream of hot air above a fire is an example of

Question
The apparent random wavering or flickering of objects seen through a turbulent stream of hot air above a fire is an example of
atmospheric refraction on a small, local scale
reflection by mirrors
dispersion by a prism
scattering by colloidal particles
Answer
atmospheric refraction on a small, local scale
Detailed Explanation
The chapter describes this flickering as an effect of atmospheric refraction occurring on a small scale in the local environment.
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