Question

1. which observation provides the best evidence that earth orbits the sun?

a) the sun has a cyclic pattern of sunspot events.
b) the sun appears to rise and set in a cyclic pattern.
c) the constellations that can be seen at night from earth change with the seasons.
d) the constellations appear to move in a circular pattern around earth.

Explanation:

• Option A: Sunspot events are related to the Sun's own activity, not Earth's orbit.
• Option B: The Sun's apparent rise and set is due to Earth's rotation, not its orbit.
• Option C: As Earth orbits the Sun, the part of the sky (and thus constellations) visible at night changes with the seasons. This is evidence of Earth's orbital motion.
• Option D: The constellations' apparent circular motion around Earth is due to Earth's rotation, not its orbit.

Answer:

C. The constellations that can be seen at night from Earth change with the seasons.