Question

1. What is the shape of Earth’s orbit around the sun?

2. How does this orbital shape affect Earth’s position in relation to the sun?

3. During which phase of its orbit would Earth’s average temperature tend to be
cooler?

4. When Earth is at its aphelion, how much further is it from the sun compared
with the distance during its perihelion?

5. Would you estimate the distance across the ellipse perpendicular to the aph-
elion and perihelion to be greater or less than 152 million km? Explain your

Answer 1

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