Planets Answers

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1
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In addition to hot surface temperatures, which characteristic makes Mercury different from Earth?

A
Mercury has rings.
B
Mercury has no moon.
C
Mercury has slow revolutions.
D
Mercury has an atmosphere of carbon dioxide.
2
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Which statement describes the density of the inner planets?

A
All the inner planets are dense.
B
The inner planets are less dense than the outer planets.
C
Earth is dense, while the other inner planets are not.
D
Mercury and Venus are dense, while Earth and Mars are not.
3

Which phrase best describes the outer planets?

A
rocky with few moons
B
gaseous with slow rotations
C
dense with few moons
D
gaseous with low density
4

Which two phrases describe the motion of all the outer planets?

A
no rotation, slow revolution
B
fast rotation, slow revolution
C
north-to-south rotation, slow revolution
D
no rotation, opposite revolution
5

Which statement best describes the size of the outer planets?

A
All the outer planets are large.
B
All the outer planets, except Saturn, are large.
C
The inner planets are larger than the outer planets.
D
Jupiter is a large planet, while the other outer planets are small.
6

Which planet is the smallest and the closest to the Sun?

A
Earth
B
Mars
C
Mercury
D
Venus
7

Which statement accurately describes the atmospheres of the inner planets?

A
Mars has no atmosphere.
B
Mercury has a thick atmosphere.
C
The atmospheres of Mars and Venus are similar in composition.
D
The atmospheres of Earth and Venus are similar in composition.
8

Which two planets are called "ice giants”?

A
Jupiter and Venus
B
Neptune and Uranus
C
Saturn and Jupiter
D
Uranus and Saturn
9

Which three words best describe the composition of the inner planets?

A
solid, smooth, giant
B
rocky, solid, dense
C
giant, dense, gaseous
D
gaseous, smooth, small
10

How is Uranus similar to Jupiter?

A
It has rings.
B
It has no moons.
C
It has a rocky surface.
D
It has methane in its atmosphere.

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