When a Dense Fog Blanket an Area at Night,you Can

question 107

Multiple Choice

When a dense fog blanket an area at night,you can often hear traffic noises coming from a distance highway or jets taking off from an airport several miles away.The reason is because

• A)when it is foggy there are layers of air at different temperatures so that some sound waves are reflected at the interface rather than spreading in all directions.
• B)when it is foggy,the air is still so you can hear sound better.
• C)on foggy days or nights your hearing is more acute,to make up for the reduced visibility.
• D)it is all in your head,it just seems that way.
• E)none of the above

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