Glacial striations are
A. carved by rock fragments frozen into the ice.
B. only found in till deposits.
C. used to show the rate and direction of ice flow.
D. All of the choices are correct.
Answer: A
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A ball is tossed straight upward at 40 m/s with no air resistance. One second before it reaches the top of its path its speed is
A. zero. B. 10 m/s. C. 20 m/s. D. 30 m/s
Climatic complementarity helps explain why a retiree spends summers in the north and winters in the south
Indicate whether this statement is true or false.
The four scales of atmospheric motion from largest to smallest are:
A) planetary, synoptic, meso, and micro. B) planetary, soprano, micro, and meso. C) meso, planetary, micro, bass. D) micro, meso, synoptic, planetary.
How are oceanic islands formed?
a) Hotspots form island chains as the overlying tectonic plate moves b) Island arcs form at oceanic-oceanic convergent boundaries c) Mid-ocean ridges form undersea volcanoes, which breach the surface of the ocean d) All of the above