Question

1. A diagram that shows the sun at the center of the solar system is known as a?
geocentric model
heliocentric model
universe model
earth moon sun model
2. Why do the planets not travel in a straight path?
The forces of inertia and gravity cause them to move in a elliptical orbit around the Earth
The forces of inertia cause the planets to move in curved paths around the sun
the forces of inertia cause the planets to move in curved paths around the sun
the forces of gravity and inertia combine to produced elliptical orbits around the sun
all of above
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