Which of the following is true of the C-C bonds in benzene?
A) They are shorter than typical C-C single bonds
B) They have the same length as typical C-C single bonds
C) They are longer than typical C-C single bonds but shorter than typical C=C double bonds
D) They have the same length as typical C-C double bonds
A
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The type of fault shown in this figure is a
A) dip-slip fault.
B) normal fault.
C) strike-slip fault.
D) reverse fault.
How does a crevasse form?
A) A glacier moves over a volcanic hot spot, causing differential melting and caving it inward. B) A glacier moves across a ridge of particularly resistant rock, which breaks the glacier from the bottom upward. C) Internal stress causes a glacier's upper surface to break as the glacier moves. D) A glacier moves over a pre-existing stream valley, which causes it to fracture on each side of the valley.
Modern tsunami warning systems primarily use ________.
A. webcams and airborne drones B. sea surface buoys and ocean bottom pressure sensors C. spotters in airplanes D. LIDAR and reports from Coast Guard ships E. satellite photography and radar
What feature is visible in this image?
A) Blowout B) Bajada C) Desert pavement D) Ventifact