The consequences of a comet's tail sweeping across the Earth would be
A. quite unpredictable.
B. virtually nil.
C. likely catastrophic.
D. like an enhanced Aurora Borealis worldwide.
Answer: B
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The greatest amount of energy in the U.S is used for
A. commercial uses. B. industrial uses. C. transportation. D. heating and cooling buildings.
You observe two shale beds separated by 300 kilometers. The rocks in the two shale beds are similar, but one bed is
several million years older than the other. You can conclude both beds ____. a. are time-correlated b. contain the same guide fossils c. are lithologically correlated d. are time correlated and contain the same guide fossils e. are unrelated
Define remote sensing
What will be an ideal response?
________ does not generally determine the erosive effectiveness of a stream
A) Speed of flow B) Turbulence of flow C) Gradient of the stream bed D) Volume of flow E) Saltiness