Earth's Axis Completes a Precession Every
A) 25,800 Years $1 / 4$

question 88

Multiple Choice

Earth's axis completes a precession every

• A) 25,800 years.
• B) 30 days.
• C) day.
• D) 365 \(1 / 4\) days.

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Definitions:

4-Phenylbutan-2-ol

An organic compound with the structure of butan-2-ol substituted with a phenyl group at the fourth carbon.

3-Phenylpropanal

An organic compound characterized by a benzene ring attached to a three-carbon chain ending in an aldehyde group.

3-Methylhept-4-yn-3-ol

An organic molecule characterized by a chain of eight carbon atoms with a triple bond and a methyl and alcohol functional group attached.

But-1-yne

An alkyne hydrocarbon with the chemical formula C4H6, having a triple bond between the first and second carbons.