Rotation of the Earth, with the sun going out of view.
The rotation of the earth is what causes the sun to appear to set
The Earth's rotation causes the Sun to rise in the east and set in the west every day.
The Earth's rotation causes the sun and moon to 'rise' and 'set. The rotation also causes the sun and moon to move across the sky from east to west, but really this is an illusion we see on out planet.
The Sun is at the centre of our solar system. the Earth not only orbits the Sun - but also spins on its axis. The spinning of the earth presents a different area of the planet's surface towards the Sun - making the sun appear to rise and set.
Because the orbit of the sun is some what curved and elliptical so it causes variation in timings of sunrise and sunset.
The atmosphere and landscape causes the sun set to look like it sets and rises as at these points the sun rays are at a point where all harmful rays are blocked off by the atmospheric layers so it is visible as a orange sphere and as the Earth rotates this causes the sun to look like its setting and rising at a distance.
The word you're looking for is "retrograde".
No, the sun's exact position when setting varies throughout the year due to the tilt of the Earth's axis and its orbit around the Sun. This causes the sun to set at different points along the western horizon each day.
No, the Earth's revolution around the sun is not related to the rising and setting of the sun on a daily basis, which is caused by the Earth's rotation on its axis.
The reason it is said that the sun appears to rise in the east and set in the west is that it doesn't actually rise or set. From our vantage point, it appears that the sun is moving across the sky when in reality, it is the rotation of our own planet that causes the transition from night to day and so on.
The sun appears to rise and set every 24 hours because of Earth's rotation on its tilted axis about the sun. The sun is located at the center of the solar system and does not change in position. However, as the Earth makes one complete revolution every 24 hours, different regions of the world pass through the sun's light, causing the effects of a sunrise and a sunset.
Energy from the Sun causes wind.