Question 7 — Scientific studies show that - Questions at the end of the chapter - Chapter 11 Class 8 - Keeping Time with the Skies (Curiosity)

Last updated at July 13, 2026 by

Q 7
Question

Scientific studies show that the Moon is getting farther away from the Earth and slower in its revolution. Will luni-solar calendars need an intercalary month more often or less often?

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Answer
Less often.

Explanation

  • A slower Moon takes longer to complete each phase cycle.
  • So a lunar month becomes longer.
  • The 12 lunar months then fall less short of the solar year.
  • So the extra month is needed less often.
Longer lunar months close the gap with the solar year faster, so an intercalary month is needed less often.
← Back to concept: 11.2.3 Luni-solar calendars
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