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 hurricanes have negative, often devastating effects on the Caribbean and Central America.
Explanation:
Both, the Caribbean an Central America, are located in areas where there is high hurricane activity. These two regions are not well developed, but instead they are developing, and there is large scale poverty, which unfortunately doesn't go well in a combination with the hurricanes. Every year, several hurricanes of varying sizes hit these regions, and the effects are devastating more often than not.
Because the people are poor in general, as well as the countries themselves, the infrastructure is of very bad quality. The systems for warning are either non-existent or not very efficient. When stronger hurricanes hit these two regions suffer badly as most of the infrastructure gets destroyed. The bad organization results in lot of people ending up without any help or with little to no medical assistance. Hundreds of thousands of people every year end up homeless, badly injured, or dead, and part of the reason for that is that the warning systems often don't work properly and don't notify the people on time to take cover in safer grounds.
Some of the countries that often have huge problems because of hurricanes are:
- Haiti
- Dominican Republic
- Belize
- Cuba
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Answer:
The Panama canal
Explanation:
Opened in 1914, the Panama canal allows maritime traffic to travel between the Pacific and Atlantic oceans very rapidly through a system of locks (2 on the Pacific side, one in the Atlantic side), and the boats pass through an artificial lake crossing the whole country of Panama.
It takes just a few hours to cross from one side to the other, while it would take weeks to go down to the tip of South America and back up.
In 2016, the canal opened new locks, that can receive larger boats.
My guess would definitely be false, public transportation seems like a much more reliable mean.
Hiiii friend,
In the Caribbean, Puerto Rico and Jamaica are islands of the <span> Greater Antilles.</span>
