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The Inner Planets
Test Description: Inner planets review
Instructions: Answer all questions to get your test result.
1) What makes Earth unique compared to other planets in the solar system?
A
it has liquid water at its surface
B
it has a core, mantle, and crust
C
it has a scarce supply of oxygen
D
its atmosphere holds out the most deadly gases
2) Most of what we know about Mercury\'s surface comes from this probe?
A
Mariner 10
B
Apollo 13
C
Messenger
D
Sputnik
3) What happens at night on Mercury?
A
its atmosphere reaches a temperature of above 170 degrees
B
the greenhouse effect starts over
C
its heat escapes into space
D
global warming
4) Which planet is known as Earth\'s twin?
A
Mercury
B
Venus
C
Jupiter
D
Mars
5) How many Earth months does it take Venus to revolve around the sun?
A
15
B
21
C
10
D
7.5
6) It is impossible to stand on Venus because
A
frequent rains would drown you
B
the least bit of movement on Venus causes a volcanic eruption
C
the pressure of its atmosphere would crush you instantly
D
there is no solid surface on the planet
7) What causes the reddish color seen on Mars?
A
the red liquid water seen at Mars surface
B
the breakdown of iron-rich rocks which creates a rusty dust
C
the frozen red polar ice caps
D
the clouds that drop red sulfuric acid throughout the planet
8) What did the first space probes show about Mars?
A
it is less than 100,000 years old
B
it is barren and covered with craters just like Earth's moon
C
it has little to no carbon dioxide
D
evidence that there really is extraterrestrial life on the planet
9) Mars is home to the largest volcano in the solar system which is
A
Mt. Deimos
B
Mt. Phobos
C
Mt. Vespuvius
D
Olympus Mons
10) How many moons does Mars have?
A
63
B
24
C
2
D
15
*select an answer for all questions
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