Answer:
"The Earth travels around the Sun in an elliptical orbit, so the distance between the Earth varies at different times of the year."
Step-by-step explanation:
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Earth's Revolution
The Earth revolves around the Sun because gravity keeps it in a roughly circular orbit around the Sun. The Earth's orbital path is not a perfect circle, but rather an ellipse, which means that it is like a slight oval in shape (Figure 24.10).
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