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Characteristics of the Solar System
Earth and Space
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2
Which of the following characteristics of Jupiter best explains
why Jupiter does not support life, while Earth does? Jupiter -
A
has four moons that orbit the planet.
B
has virtually no water on the surface.
C
rotates on its axis once every 10 hours.
D
orbits the Sun once every 12 years.
Which of the following characteristics of a planet will have
the greatest influence on determining whether or not its
temperature will be suitable to support life?
A
The amount of its gravitational force
B
The number and size of active volcanoes
C
The tilt of the axis of rotation of the planet
D
The distance from the Sun of its orbit
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Characteristics of the Solar System
Earth and Space
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4
Which of the following data could be collected about a planet
in a distant planetary system, which might give scientists
information about whether or not life exists on that planet?
A
The number of other planets in the system
B
How long the planet takes to rotate
C
The orbit length of the planet
D
The presence of an atmospheric ozone layer
If Earth were much smaller than it is now, it would not
support life because it would not have enough mass to -
A
collect needed radiant energy from the Sun.
B
maintain a gravitational pull on the Moon.
C
have sufficient gravity to hold an atmosphere.
D
rotate on its axis once per day.
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Characteristics of the Solar System
Earth and Space
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Ozone contributes to supporting life on earth by blocking -
A
ultraviolet light.
B
water vapor.
C
helium ions.
D
atmospheric heat.
Which of the following discoveries about Mars suggests
conditions that may have once supported life? Mars has -
A
the tallest mountain in the solar system.
B
two moons orbiting the planet.
C
only a small amount of atmosphere.
D
small amounts of water in the soil.
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Characteristics of the Solar System
Earth and Space
7
The habitable zone for the star in the diagram shown is
between 200 and 250 million km away from the star.
Which of the planets shown in the diagram can support life?
A
Planet W
B
Planet X
C
Planet Y
D
Planet Z
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