Question: How does the cooler air above the lake affect the movement of sound at night? Sound travels faster in cooler air. The cooler temperature above

How does the cooler air above the lake affect the movement of sound at night? Sound travels faster in cooler air. The cooler temperature above the water refracts the sound wave away from the ground and toward the sky. Because it is colder just above the surface and warmer higher above, the sound wave is refracted toward the ground

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2. Find out if there are other reference points that can be used as reasonable alternatives.

1. Identify your reference point when making a decision based on an element of risk.

3. If there are reasonable alternatives, think about your decisions based on the different reference points and see if there are any contradictions in the decisions.