D is the answer.
Hope it helps!
The orbital period is proportional to the 3/2 power of the semi-major axis. Earth, with a semi-major axis of 1 au has a period of 1 year, so Sedna is expected to have an orbital period of
480^(3/2)×(1 year) ≈ 10,516 years
Answer:
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Answer:
it is settlement movement