A) Chemical reactions turned Earth's carbon dioxide into nitrogen.
B) Earth has just as much carbon dioxide as Venus, but most of it is locked up in carbonate rocks rather than being free in the atmosphere.
C) Earth once had a lot of carbon dioxide, but it was lost to space during the heavy bombardment early in our solar system's history.
D) Earth's volcanoes outgassed far less carbon dioxide than those on Venus.
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Life and oxygen also explain the presenc...View Answer
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A) The maria are the result of gradual erosion by micrometeorites striking the Moon.
B) Large impacts fractured the Moon's lithosphere, allowing lava to fill the impact basins.
C) Volatiles escaping from the Moon's interior heated and eroded the surface in the regions of the maria.
D) The giant impact that created the Moon left smooth areas that we call the maria.
E) The early bombardment created heat that melted the lunar surface in the regions of the maria.
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A) density.
B) geological activity.
C) strength.
D) temperature.
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A) the Moon
B) Mars
C) Venus
D) Earth
E) Mercury
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A) carbon dioxide dissolves in water, and most of it is now contained in the oceans and carbonate rocks.
B) Earth doesn't have as strong a greenhouse effect as is present on Venus.
C) most of the carbon dioxide was lost during the age of bombardment.
D) the Earth's volcanoes did not outgas as much carbon dioxide as those on Venus and Mars.
E) chemical reactions with other gases destroyed the carbon dioxide and replaced it with the nitrogen that is in the atmosphere now.
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A) 15 K.
B) 30 K.
C) - 16 K.
D) There is no greenhouse effect.
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The answer to this question is simply th...View Answer
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A) thunderstorms tend to form on hot summer days
B) gas bubbles form and rise upward in boiling water
C) a large baked potato takes longer to cool than a small baked potato
D) Earth contains more metal than the Moon
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A) Mercury
B) the Moon
C) Mars
D) Venus
E) Earth
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A) accretion, differentiation, and radioactivity.
B) convection, differentiation, and eruption.
C) conduction, convection, and eruption.
D) accretion, differentiation, and eruption.
E) conduction, differentiation, and accretion.
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A) Seasons would be more extreme.
B) Seasons would last longer.
C) Days would get hotter and nights would get colder.
D) Days would be shorter.
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