Caves usually form in
A. topsoil.
B. underground regions that contain little groundwater.
C. subsoil.
D. the saturated zone beneath the water table.
Answer: D
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The inks used in printing the full-color photos in paper-bound books are
A. magenta, cyan, and yellow. B. magenta, cyan, yellow, and black. C. red, green, blue, and black. D. red, green, and blue.
What do astronomers expect will be left at the center of our solar system once the Sun has gone through all its life stages?
A. a red giant B. a wormhole C. a planet-sized diamond D. a black hole
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South of Goethe Lake find Mount Goethe on Figure 25.3 (topographic map) and Figure 25.4 (NAIP photo). What will be an ideal response?
Describe some of the possible ocean energy sources
What will be an ideal response?