How Is the Earth's Rotation Axis Oriented Relative to the Revolution

question 70

Multiple Choice

How is the earth's rotation axis oriented relative to the revolution orbit?

• A)It changes with time so that it is perpendicular in June and December.
• B)It is fixed and always points toward the North Star regardless of season.
• C)It varies somewhat randomly over small angles,less than 23.5 degrees.
• D)We don't really know how much it varies because we have not been able to make observations from space for more than about 60 years.

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