The Finnic branch of the Uralic languages, named for Ural.
Answer:
<u>Geocentric Model</u>: - this model is Earth Centered
-Retrograde motion is explained by epicycles
<u>Heliocentric Model</u>: - This model is Sun Centered
-Retrograde motion is explained by the orbital speeds of planets
<u>Both models</u>:- Epicycles and deferents help explain planetary motion
-Planets move in circular orbits and with uniform motion
-The brightness of a planet increases when the planet is closest to Earth
Explanation:
Retrograde motion is an apparent change in the movement of the planet through the sky. Ptolemy's model of the solar systems was geocentric, where the Sun, Moon, planets and start all orbit the Earth in perfectly circular orbits. However this perfectly circular orbits around the Earth did not explain the occasional retrograde motion of the planets. In the Copernicus' heliocentric model, retrograde motion of planets is naturally explained. The explanation for retrograde motion in a heliocentric model is that retrograde occurs roughly when a faster moving planet catches up to and passes a slower moving planet.
<span>Population density </span><span>defines the average number of people living within a square mile.
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Answer:
South Asia is the birthplace of four of the world's religions: Hinduism, Buddhism, Sikhism, and Jainism. Three that come from West Asia: Christianity, Islam, and Judaism arrived later. Zoroastrianism, the major religion in ancient Persia (now Iran) until it became Muslim, also survives in India
