Question

an imaginary sphere that extends around earth on which the stars appear to move
exactly half way between the celestial poles
an imaginary line that extends from the north celestial pole to the south celestial pole that passes through your zenith
an imaginary line that extends along your line-of-sight at eye level

2 multiple choice 1 point
why do stars seem to make circles around the sky in the course of a single night?
○ the stars really do move that much overnight

Explanation:

For the matching part (assuming the terms to match are Celestial Sphere, Celestial Equator, Meridian, Horizon):

1. "An imaginary sphere that extends around Earth on which the stars appear to move" matches "Celestial Sphere".
2. "exactly half way between the celestial poles" matches "Celestial Equator".
3. "An imaginary line that extends from the north celestial pole to the south celestial pole that passes through your zenith" matches "Meridian".
4. "An imaginary line that extends along your line - of - sight at eye level" matches "Horizon".

For the multiple - choice question:

The stars seem to make circles around the sky in a single night mainly because of the Earth's rotation. The option "The stars really do move that much overnight" is incorrect because the stars are very far away and their actual movement over a single night is negligible compared to the apparent circular motion caused by Earth's rotation. (Note: Since the other options are not fully visible, but based on the given incorrect option, we can analyze this way. If there was an option like "Earth rotates on its axis", that would be the correct one.)

Answer:

The option "The stars really do move that much overnight" is incorrect. (If we assume the other option related to Earth's rotation is correct, for example, if there was an option B: "Earth rotates on its axis", then the answer would be B. Earth rotates on its axis)