A sky map is created by astronomers to identify, name, and plot celestial objects it is a map of the sky made by dividing the celestial sphere into 88 different areas.
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(Says I have to cite my sources so here goes: I just copy/pasted your question into Google lol)
Answer:
b)a pattern
Explanation:
Because he saw the pattern of movement of Jupiter repeatedly
Answer:
i think it might be A
Explanation:
Mid-ocean ridges form along divergent boundaries aka where two plates are pulling away for one another so I'm assuming it's A "Where two oceanic plates move apart"