Exam 9: Planetary Geology: Earth and the Other Terrestrial Worlds

A) Mercury,Venus,Earth,Moon,Mars
B) Mercury,Moon,Venus,Earth,Mars
C) Moon,Mercury,Venus,Earth,Mars
D) Moon,Mercury,Mars,Venus,Earth
E) Mercury,Moon,Mars,Earth,Venus

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A) Mars
B) Earth
C) the Moon
D) Venus
E) Mercury

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The shapes of craters can tell us the ty...

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A) It is the only one that has a metallic core.
B) It rotates much faster than any other terrestrial world.
C) It is the only one that has both a partially molten metallic core and reasonably rapid rotation.
D) It is by far the largest terrestrial world.
E) It is the most volcanically active world.

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A) They were cooler when they formed.
B) The smaller ones are farther from the Sun.
C) They have relatively fewer radioactive elements.
D) They have relatively more surface area compared to their volumes.
E) They had more volcanic eruptions in the past,which released their internal heat.

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Since Venus is about Earth's s...

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A) a core layer of molten,convecting material and sufficiently rapid rotation
B) a metal core and rapid rotation
C) a metal core,a rocky mantle,and sufficiently rapid rotation
D) a core that has a molten layer and a mantle that has convection

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A) densely cratered regions on the Moon
B) mountainous regions on the Moon
C) frozen oceans of liquid water on the Moon
D) relatively smooth,flat plains on the Moon

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A hypothesis must make predictions that ...

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A) conduction.
B) convection.
C) radiation.
D) accretion.
E) differentiation.

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A) Large impacts shattered lunar rock to make this soil.
B) The soil exists because the Moon accreted from powdery material after a giant impact blasted Earth.
C) Volatiles escaping from the Moon's interior bubble upward and make the soil.
D) The soil is the result of the same processes that make powdery sand on Earth.
E) It's the result of gradual erosion by micrometeorites striking the Moon.

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A) oxygen in the atmosphere and mantle convection
B) the existence of life and oxygen in the atmosphere
C) Earth's liquid outer core and solid inner core
D) mantle convection and a thin lithosphere

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A) the entire planets are made mostly of metal.
B) metals condensed first in the solar nebula and the rocks then accreted around them.
C) metals sank to the center during a time when the interiors were molten throughout.
D) radioactivity created metals in the core from the decay of uranium.
E) convection carried the metals to the core.

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A) impact cratering
B) volcanism
C) tectonics
D) erosion
E) magnetism

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A) the excavation of bowl-shaped depressions by asteroids or comets striking a planet's surface
B) the eruption of molten rock from a planet's interior to its surface
C) the disruption of a planet's surface by internal stresses
D) the wearing down or building up of geological features by wind,water,ice,and other phenomena of planetary weather

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A) thin continental crust separating and creating a rift valley.
B) plumes of hot mantle rising in a hot spot within a plate.
C) plates that have slipped sideways relative to each other,creating a fault.
D) a plate that has run up against an existing continental plate.
E) a fault.

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