The answer is <em>B. 5/4</em> or <em>1.25</em>
Answer:
Longitudinal wave are those in which the motion of the particles is along the direction of the medium. It always requires the medium to travel.We can say that a wave that oscillates back and forth that means moving in same interval.
And sound is the longitudinal wave that requires a medium to move.
the cycle of the Moon through all its phases
Explanation:
The cycle of the Moon through all its phases is closely related to the unit of time that humans call month.
It takes 27 days for the moon to complete its orbit around the earth and this is equivalent to a month.
The moon is the earth's natural satellite and it revolves round it in every 27 days.
The moon passes through its different phases within this time period.
learn more:
Astronomy brainly.com/question/1316347
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