The Moon’s internal structure is similar to Earth’s, but the Moon lacks© 2017 Pearson Education, Inc... Explanation: Both Earth and the Moon have a core, mantle, and crust, but Earth has
Trang 2The Moon’s internal structure is similar to Earth’s, but the Moon lacks
© 2017 Pearson Education, Inc.
Trang 3The Moon’s internal structure is similar to Earth’s, but the Moon lacks
d) all of the above.
Explanation: Both Earth and the Moon
have a core, mantle, and crust, but
Earth has a liquid water-rich layer, air,
and a magnetic field
Trang 4The principal greenhouse gases in our present atmosphere are
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Trang 5The principal greenhouse gases in our present atmosphere are
c) water vapor and carbon dioxide.
Explanation: A greenhouse gas lets
shorter-wavelength light pass through,
but absorbs longer-wavelength light
Trang 6Without the greenhouse effect in our atmosphere
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Trang 7Without the greenhouse effect in our atmosphere
b) the Earth’s oceans would be frozen.
Explanation: Earth’s greenhouse effect
makes the planet about 40ºC hotter
than it would otherwise be This raises
the average surface temperature
above the freezing point of water
Trang 8The region around Earth where the magnetic field traps charged particles is the
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Trang 9The region around Earth where the magnetic field traps charged particles is the
c) Van Allen radiation belts.
Explanation: The Earth’s
magnetosphere influences the charged
particles of the solar wind Some particles are channeled toward the poles, creating the aurora
Trang 10At what lunar phase would the variation between high and low tides be greatest?
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Trang 11At what lunar phase would the variation between high and low tides be greatest?
e) Both new and full Moon
Explanation: At new and full
Moon phases, the Sun and Moon
combine to stretch the Earth and its oceans even more
We see higher high tides and lower low tides.
Trang 12What force aligned the Moon’s near side to constantly face Earth?
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Trang 13What force aligned the Moon’s near side to constantly face Earth?
c) Earth’s tidal force
Explanation: Just as the Moon
creates tides on Earth with its gravitational force, the Earth affects the Moon, too Because of Earth’s tidal force, the Moon spins once a month
Trang 14Lunar maria are found
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Trang 15Lunar maria are found
b) mostly on the side facing Earth.
Explanation: Because the Moon keeps its near side always facing Earth, that side has
a thinner crust and is also less cratered
Trang 16A planetary atmosphere with ozone could protect surface dwellers from
Trang 17A planetary atmosphere with ozone could protect surface dwellers from
Trang 18Which of these is NOT a result of the Earth’s magnetic field?
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Trang 19Which of these is NOT a result of the Earth’s magnetic field?
d) Volcanic eruptions
Explanation: Our planet’s magnetosphere is generated by Earth’s rotation and its liquid metal core In contrast, the Moon doesn’t have a magnetic field
Trang 20Today, which of these theories best explains the Moon’s origin?
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Trang 21Today, which of these theories best explains the Moon’s origin?
b) The giant impact theory
Explanation: The giant impact theory seems
to explain why the Moon is similar to Earth’s
mantle and why it doesn’t have a dense core