How Long Will It Take for Precession to Move the Earth's

question 113

Multiple Choice

How long will it take for precession to move the Earth's spin axis to a position perpendicular to the ecliptic plane?

• A) no time at all because the axis is in this position now
• B) a very long or even infinite time because it is very unlikely to happen
• C) 13,000 years
• D) 26,000 years

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