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Astronomy-The Inner Planets
Test Description: Practice
Instructions: Answer all questions to get your test result.
1) The correct order for the four inner planets (starting with the one closest to the Sun) is
A
Venus, Mars, Earth, Mercury
B
Mars, Earth, Venus, Mercury
C
Earth, Mercury, Venus, Mars
D
Mercury, Venus, Earth, Mars
2) The inner planet with the hottest average temperature is
A
Mercury
B
Venus
C
Mars
D
Earth
3) The largest of the inner planets is
A
Mercury
B
Earth
C
Mars
D
Venus
4) The only inner planets with moons are
A
Mars and Venus
B
Mercury and Earth
C
Mercury and Venus
D
Earth and Mars
5) What caused Mercury to lose its atmosphere?
A
the solar wind
B
heat from the Sun
C
a gas explosion from the core
D
it's strong gravity
6) The smallest of the inner planets is
A
Mercury
B
Mars
C
Earth
D
Venus
7) The only inner planet that currently has water on its surface is
A
Earth
B
Venus
C
Mercury
D
Mars
8) Olympus Mons and the Valles Marineris are both geologic features on which inner planet?
A
Mars
B
Mercury
C
Venus
D
Earth
9) The sky on Mercury will look
A
red because of the iron oxide dust
B
grey since it reflects the surface
C
black since it has no atmosphere
D
yellow because of the sulfuric acid in its clouds
10) Earth is protected from the solar wind by
A
its revolution around the sun
B
its clouds
C
its large mass
D
its electromagnetic field
*select an answer for all questions
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