Freddy Fish in a tank of water shines a thin beam of light upward at 12° to the normal. Most light continues into the air above, but some reflects from the surface back into the water makes an angle
A. less than 12° to the normal.
B. 12° to the normal.
C. more than 24° to the normal.
D. 24° to the normal.
Answer: B
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One mineral is held together by van der Waal's forces and the other is held together by metallic bonds. Which is stronger?
A) They are equally strong. B) They are equally weak. C) The mineral held together by metallic bonds is stronger. D) The mineral held together by van der Waal's forces is weaker.
Compare and contrast rapid mass movements and slow mass movements. What will be an ideal response?
Below the calcium carbonate compensation depth (CCD) sediment composed of ________ will dissolve
a. silica b. diatom remains c. iron d. calcium carbonate
The boundary between two plates may not have the same characteristics in different geographic locations because of
A. one plate's depth relative to the adjacent plate's depth. B. plate boundary positions with respect to the surrounding oceans. C. curves and abrupt bends that appear in boundaries between plates.