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10 Cards in this Set
- Front
- Back
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The moons internal structure is similar to Earth's but the moon lacks... A) an atmosphere B) a hydrosphere C) a magnetosphere D) it lacks all of the above |
D) it lacks all of the above
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The principal greenhouse gases in our present atmosphere are... A) hydrogen and helium B) oxygen and nitrogen C) water vapor and carbon dioxoide D) methane and ammonia |
C) water vapor and carbon dioxoide
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Without the greenhouse effect in out atmosphere... A) we would not have to worry about ecological problems B) the Earth's oceans would be frozen C) the amount of nitrogen and oxygen would be much less D) the icecaps would have melted |
B) the Earth's oceans would be frozen
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The region around Earth where the magnetic field traps changed particles is the... A) ozone layer B) exosphere C) Van Allen radiation belts D) corona |
C) Van Allen radiation belts
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At what lunar phase would the variation between high and low tides be greatest? A) new moon B) waxing crescent moon C) full moon D) both new moon and full moon |
D) both new moon and full moon
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What force riveted the moon's near side to constantly face Earth? A) the Sun's gravity B) Earth's magnetic field C) Earth's tidal force D) the solar wind |
C) Earth's tidal force
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Lunar maria are found... A) uniformly all over the moon B) mostly on the side facing Earth C) mostly on the far side of the Moon D) only in the dark areas, out of sunlight |
B) mostly on the side facing Earth
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A planetary atmosphere with ozone could protect surface dwellers from... A) ultraviolet radiation B) charged particles in the solar wind C) meteor impacts D) optical radiation |
A) ultraviolet radiation
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Which of these is NOT a result of the Earth's magnetic field? A) a compass pointing north B) aurorae C) the Van Allen radiation belts D) volcanic eruptions |
D) volcanic eruptions
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Today, which of these theories best explains the Moon's origin? A) The fission theory B) The giant impact theory C) The capture theory D) The co-formation theory |
B) The giant impact theory
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