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I guess that's:

1. Rotation on its axis (About 24hrs period).

2. Orbital rotation around the Sun (1 year period).

3. Orbital rotation around the center of our Milky Way Galaxy's centre (1 cosmic year period).

4. Movement within the Local Group of galaxies.

5. Moving along with the expansion of the Universe.

Probably this question is mainly about numbers 1 and 2.

So the answer is "two".

It's possible that you could include the "precession" of the Earth's axis also, as a major motion.

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11y ago

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