Multiple Choice
The tilt angle of Earth's spin axis to the direction perpendicular to the ecliptic (known as the ecliptic pole)
A) is 90° and fixed.
B) varies rapidly through the year from +23.5° to -23.5°.
C) is 23.5° and fixed.
D) is 0° and fixed because this defines the ecliptic plane.
Correct Answer:
Verified
Correct Answer:
Verified
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