sllting upon other layers below. What are these sections called? Here are some c
ID: 287010 • Letter: S
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sllting upon other layers below. What are these sections called? Here are some choices: mantle plumes, tectonic plates, moraines, fault lines. 17) Volcanoes and what other geological event occur mainly at all the boundaries mentioned in question 15? Some choices are mudslides, earthquakes, enhanced erosion, mineral formation, or glaciation. 18) Scientists study the interior structure of the Earth using seismographs which monitor seismic waves. In particular, the varying density and composition of Earth's interior affect seismic waves in what way? Possible choices: Makes them spiral? Makes them change in brightness? Makes them change speed and direction? Makes them change color? See sections 6-15 to 6-17 in Chapter 6: Answer these questions: 19) What causes Venus to be so hot today? Is it volcanoes? Or the greenhouse effect? Or radioactivity? Or heat coming up from the core of Venus? 20) What did the Magellan spacecraft send through clouds surrounding Venus in order to map the three-dimensional surface of the planet? Was it radar signals? Infrared light? X-rays? Ultraviolet light?Explanation / Answer
The correct options which needs to be filled into blanks are as follows:
17. earthquakes
18. makes them change speed and direction
19. greenhouse effect
20. radar signal
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