Answer:
info for u
Explanation:
https://courses.lumenlearning.com/boundless-worldhistory/chapter/the-indus-river-valley-civilizations/
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.
The correct option is B
The country is a densely populated area in oceania region with a population density of 478 inhabitants per square kilometre. It is also one of the country in oceania with the highest fertility rate. The country has a population of 13 million. The country is a member of the common wealth.
Tree planting, because it will fight it by creating more plants. :) hope this helps!
