Which of the following is true?
A) Earth's axial tilt varies through time.
B) The ellipticity of Earth's orbit varies through time.
C) Earth wobbles on its axis.
D) All of the above are true.
E) B and C only

Question

Quizplus · Accepted Answer

All three statements are true. Earth's axial tilt changes due to various factors such as gravitational forces from other celestial bodies, precession, and nutation. The ellipticity of Earth's orbit changes over time due to gravitational interactions with other planets. Earth also experiences a wobbling motion on its axis called precession, which is caused by the gravitational pull of the Moon and Sun on Earth's equatorial bulge.

Which of the Following Is True