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Assessment
Which scientific principle explains the apparent retrograde motion of planets in the heliocentric model?
Parallax
Inertia
Gravitational attraction
Elliptical orbits
Who is credited with formulating the laws of motion that support the heliocentric model?
Galileo Galilei
Isaac Newton
Johannes Kepler
Nicolaus Copernicus
Which one of Newton's laws is crucial in explaining how planets move around the Sun in a heliocentric model?
Law of Universal Gravitation
Law of Equivalence
Law of Conservation of Energy
Law of Conservation of Mass
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