1. A meteor is caused by a star falling to Earth. a comet streaking across the s
ID: 1368548 • Letter: 1
Question
1. A meteor is caused by
a star falling to Earth.
a comet streaking across the sky.
a distant nebula.
a disturbance in the Milky Way.
a rock falling into the atmosphere.
2. A comet's nucleus is made up of
rock mixed with ice.
solid rock.
solid ice.
[Astronomers don't know.]
[None of the above]
3. Venus is unusual in that its
polar axis points almost to the Sun twice during its year.
polar axis is tilted almost exactly the same as Earth's.
polar axis changes its direction frequently, so the planet is unstable.
rotation is backward compared to the direction of most of the planets.
[More than one of the above]
a star falling to Earth.
a comet streaking across the sky.
a distant nebula.
a disturbance in the Milky Way.
a rock falling into the atmosphere.
2. A comet's nucleus is made up of
rock mixed with ice.
solid rock.
solid ice.
[Astronomers don't know.]
[None of the above]
Explanation / Answer
1. A meteor is a piece of rock that enters Earth's atmosphere and may get completely burned due to friction.
Ans is 'a rock faaling into Earth's atmosphere'
2. Comet's nucleus consists of rocks, dust, ice and frozen gases like ammonia, methane and CO2
Answer is Rock mixed with ice
3. Venus rotated from East to West unlike other planets. Sun rises in west and sets in east on Venus
Ans is ' rotation is backward compared to the direction of most of the planets'
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