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