The correct order for changing models of our solar system, starting with the oldest and ending with the most recent changes, is:
D. geocentric, heliocentric, elliptical orbits
- Geocentric Model: The Earth-centered model was the earliest, where it was believed that all celestial bodies revolved around the Earth.
- Heliocentric Model: Proposed by Copernicus, the Sun-centered model placed the Sun at the center of the solar system, with planets, including Earth, orbiting around it.
- Elliptical Orbits: Introduced by Kepler, this model refined the heliocentric theory by describing the orbits of the planets as elliptical rather than circular.
So option D accurately represents the chronological progression of the solar system models.
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