You are presented with the question "What can the moon revolving around the earth be used to calculate?" and the following answer choices: 
- seasons
 - pain
 - magnetism
 - tides
 - voltage
 - Length
 - weight
 - motion

Now knowing that the moon revolving around the Earth causes the phases of the moon and tides also calculates the moon phases and the tide's coefficients, choose the best answer.


 

    tides     