alleryStart learning →The time the Moon needs to complete its full cycle of phases is called what?
AThe season
BThe year
CThe month
DThe week
Answer & Solution
Correct answer: C. The month
1. Calendars are built from natural time intervals set by Earth and the Moon.
2. The day comes from Earth's spin and the year from Earth's trip around the Sun.
3. The interval the Moon needs to run through its phases is the month.
_Source: OpenStax Astronomy (CC BY 4.0), Ch 4 "Earth, Moon, and Sky" and Ch 5 "Radiation and Spectra", section 4.4 The Calendar_
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