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";s:4:"text";s:5209:"The chemical composition of the regolith varies according to its location; the regolith in the highlands is rich in The lunar regolith is very important because it also stores information about the history of the As crystallization of the lunar magma ocean proceeded, minerals such as olivine and pyroxene would have precipitated and sank to form the lunar mantle. Many scientists suspect that Venus has a stronger and thicker lithosphere than Earth. Which of the following best describes the geological histories of the Moon and Mercury? A) related to a mantle hot spot B) related to plate subduction C) related to a mid-oceanic ridge system D) related to deep, transform faults Answer: B Diff: 1 42) Which of the following statements best describes the big Hawaiian volcanoes? Which one offers evidence of a global repaving about a billion years ago?Venus has relatively few impact craters and these craters are distributed fairly evenly over the entire planet.Which of the following best explain what we think happened to outgassed water vapor on Venus?Ultraviolet light split the water molecules, and the hydrogen then escaped to space.Why are there fewer large impact craters on the Earth's seafloor than on the continents?The crust on seafloors is younger than on continents, so it has had less time in which to suffer impacts.Which two factors are most important to the existence of plate tectonics on Earth?Why does Earth have so little carbon dioxide in its atmosphere compared to Venus?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.Which two factors are critical to the existence of the carbon dioxide (CO2) cycle on Earth?Suppose Earth were to cool down a little. If we looked at a typical region of the mantle, what would we see happening?not much- on human time scales, the mantle looks like solid rockRecent evidence suggests that Mars once had a global magnetic field. Lighter surfaces are the lunar highlands, which receive the name of The ages of the mare basalts have been determined both by direct A large portion of maria erupted within, or flowed into, the low-lying impact basins on the lunar nearside. Supposed we use a baseball to represent Earth. A) Early in their histories, they suffered many impacts and experienced some volcanism and tectonics, but they now have little geological activity at all. Which of the following best describes the geological history of the Moon and Mercury? Which of the following best describes the geological histories of the Moon and Mercury? Small craters tend to form a bowl shape, whereas larger impacts can have a central peak with flat floors. Which one might have led to a significant loss of atmospheric gas to space?Mars lost any global magnetic field that it may once have had.Many scientists suspect that Venus has a stronger and thicker lithosphere than Earth. These are distinguished from Generally speaking, a lunar crater is roughly circular in form.
Other major differences are that the Moon does not currently have a dipolar magnetic field (as would be generated by a Relative concentration of various elements on the lunar surface (in weight %)Relative concentration (in weight %) of various elements on lunar highlands, lunar lowlands, and EarthYu. Laboratory experiments at NASA's The largest impacts produced melt sheets of molten rock that covered portions of the surface that could be as thick as a kilometer. Which of the following best describes the geological histories of the Moon and Mercury? B) All four geological processes were important in their early histories, but only impact cratering still reshapes their surfaces today. Based on a great deal of evidence, scientists believe that this warming is caused by ____.Human activities that are increasing the concentration of greenhouse gases in Earth's atmosphere.Based on all we know about the terrestrial worlds, what single fact appears to play the most important role in a terrestrial planet's geological destiny?>The cores of the terrestrial worlds are made mostly of metal because ______.metals sunk to the centers a long time ago when the interiors were molten throughoutWhich internal heat source still generates heat within the terrestrial worlds today?The reason that small planets tend to lose their interior heat faster than larger planets is essentially the same as the reason that __________.a large baked potato takes longer to cool than a small baked potatoSuppose we had a device that allowed us to see Earth's interior.