Question

why astronomers on moon use sign language to communicate​

Answer 1

Answer:

astronomer in moon uses sign language to communicate because action speaks louder than voice. as there is less friction in moon,sound wave becomes slow so sign language is more preferable

Answer 2

Because there is no air on the moon. The sound needs air to travel, therefore sound can’t be travelled(we cannot hear anything in space). So, to communicate the astronomers use sign language on moon.

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