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Quiz 6 - Sarah Miller
Our Solar System (ESCI 420)
University of New Hampshire
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Quiz 6
1. Mercury's average density is about 1 times greater than that of Earth's Moon, even
though the two bodies have similar radii. What does this suggest about Mercury's composition? a. Mercury must have a uranium core. b. Mercury's interior is much richer in iron than the Moon's. c. Mercury's greater mass has prevented its gravitational attraction from compressing it as much as the Moon is compressed. d. Mercury contains proportionally far more rock than the Moon.
2. How do we know the Caloris Basin is younger than other parts of the Mercury surface?
a. The densest population of crater features are found in its center. b. It used to be filled with water. c. It contains fewer craters than other parts of Mercury. d. It contains unusual rippled highland terrain.
3. The scarps that cut across the surface of Mercury probably were
a. formed when the crust buckled as Mercury cooled. b. cut by flowing lava. c. produced by impacts pushing portions of the crust outward. d. formed when crustal plates ran together during a plate tectonic phase.
4. Mercury's core is unusual in that
a. it is partially molten. b. it has a high density. c. it contains iron. d. it is relatively large compared to Mercury's size.
Quiz 6
5. What evidence is there that the surface of Venus was covered by giant flows of lava a few
hundred million years ago? a. There are relatively few impact craters on Venus. b. The number of cracks in the lava indicate how old it is. c. The surface is still hot. d. Radioactive dating was used to determine when it cooled.
6. Why are images of the surface of Venus produced by NASA represented in false color?
a. The visible color of the Venus surface is so monochromatic that it is more useful to highlight elevation differences with false color. b. The surface of Venus is obscured by clouds in the visible part of the EM spectrum. c. Satellite instrumentation lacks the ability to detect light in the visible region of the EM spectrum. d. Scientists would rather use color saturated images when conducting research.
7. Our knowledge of the composition of Earth's core comes from
a. gravitational waves that pass through Earth. b. analysis of the material erupted by volcanoes. c. samples obtained by drilling deep holes. d. analysis of earthquake waves.
8. The slow shifts of our planet's crust are thought to arise from
a. the Earth's magnetic field drawing iron in crustal rocks toward the poles. b. heat from the interior causing convective motion, which pushes on the crust.
Quiz 6 - Sarah Miller
Course: Our Solar System (ESCI 420)
University: University of New Hampshire
