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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Definitions:

Different Versions

Variations or alternative forms of something, often implying modifications or updates.

Independent Variable

In an experiment, the variable that is manipulated or changed to observe its effect on the dependent variable.

Dependent Variable

In an experiment, the variable that is being tested and measured, often to see if it is affected by changes in another variable (the independent variable).

Correlated

When two or more variables are related in some way, indicating that changes in one variable are associated with changes in another.