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Why do we have a leap year every four years?
  • a)
    The Earth gets shifted out of orbit every four years
  • b)
    The revolution slows down a little once in every four years
  • c)
    The length of a year is not an integer number of days
  • d)
    It is a convention
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Why do we have a leap year every four years?a)The Earth gets shifted o...
The concept of a leap year is basically a corrective measure as the length of a year is not 365 days, but about 365.25 days. This is adjusted in our length of a year every 4 years when 1 more day is added to the month of February.
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Why do we have a leap year every four years?a)The Earth gets shifted o...
Understanding Leap Years
Leap years occur every four years due to the way we measure time in relation to the Earth's orbit around the Sun.
Why Does This Happen?
- The Earth takes approximately 365.2422 days to complete one full orbit around the Sun.
- Our calendar system, however, is based on 365 days. This discrepancy results in a slight error each year.
Accumulation of Extra Time
- Each year, we effectively "lose" about 0.2422 days (or about 6 hours).
- Over four years, this adds up to nearly a full day (0.2422 x 4 = 0.9688 days).
Leap Year Adjustment
- To correct for this accumulated time, an extra day is added to the calendar every four years, creating what we call a leap year.
- This extra day is added to February, making it 29 days long instead of the usual 28.
Importance of the Leap Year
- Without this adjustment, our calendar would gradually drift out of sync with the seasons over time.
- For example, after several decades, summer could start in what we now consider spring.
Conclusion
- The leap year is essential for keeping our calendar aligned with the Earth's position in its orbit.
- Hence, option 'C' is correct: the length of a year is not an integer number of days, leading to the need for leap years every four years.
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Why do we have a leap year every four years?a)The Earth gets shifted out of orbit every four yearsb)The revolution slows down a little once in every four yearsc)The length of a year is not an integer number of daysd)It is a conventionCorrect answer is option 'C'. Can you explain this answer?
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