How did the ptolemaic model differ from other proposed solar system models ?

The Ptolemaic model of the solar system was geocentric, meaning that it was the earth that was at the center of the universe — and everything revolved around it. The main difference between it and other models was that they were heliocentric, where it was the sun at the center of the solar system with the planets revolving around it.

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The Ptolemaic model differs from other proposed solar system models because the planets have epicycles.

Explanation: Ptolemaic model believed that the earth is at the centre with the moon, sun, stars and other planets rotating or revolving around the earth. This model assumed that the planet moved in a circle. Thus, it is a model of the structure of the solar system.

Epicycles are orbits rotating on another circular orbit.

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.