Sam's father and mother are astronauts. Last month they returned from a tour to the moon. Sam's father told him that they had air filled helmets and they also had microphones, which they used for talking to each other. But his mother was not able to listen to him when they removed their helmets. (Assume they were wearing oxygen masks when they removed their helmets). What is the reason?

There was too much noise on the moon

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There is no air on the moon

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His father's voice was too low because he got choked due to poisonous gases of the moon

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Both A & C

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Solution

The correct option is B
There is no air on the moon

There is no atmosphere on the moon. Sound needs a medium to travel and since there is no air, sound cannot travel. This is the reason his mother was not able to listen to his father.

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The correct option is B There is no air on the moon There is no atmosphere on the moon. Sound needs a medium to travel and since there is no air, sound cannot travel. This is the reason his mother was not able to listen to his father.

The correct option is B
There is no air on the moon

There is no atmosphere on the moon. Sound needs a medium to travel and since there is no air, sound cannot travel. This is the reason his mother was not able to listen to his father.