Answer:
<em>Hello, Combustion occurs when fossil fuels are burned, and the elements in the fossil fuels oxidize, or combine with oxygen. When coal is burned, the carbon oxidizes to form carbon dioxide, or CO2. Hope That Helps!</em>
<em>From SusieLouielove.</em>
Answer: TRUE.
Explanation: "Glory" is an optical phenomenon caused by water droplets, consisting of concentric rings and somewhat similar to a rainbow.
The glory consists of one or more concentric, successively dimmer rings, each of which is red on the outside and bluish towards the centre.
In order to see a glory, therefore, the clouds or fog causing it must be located below the observer, in a straight line with the Sun/Moon and the observer's eye.
Colored rings appearing surrounding the shadow of an aircraft flying above a cloud is sometimes called The Glory of the Pilot.
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.
In regards to the given question, there are no options given to choose from. I am answering this question based on my knowledge and hope that it helps you. Middle-latitude cyclones are fueled by air high up in the atmosphere. These cyclones are also known by the name of frontal cyclones and they are very large cyclonic storms that have a diameter of about 2000 kilometers.
