The "ozone hole" that causes concern among scientists and the public is an ozone depletion in the
A. Tropopause
B. Thermosphere
C. Troposphere
D. Mesosphere
E. Stratosphere
Answer: E
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On the Modified Mercalli Intensity Scale, destroyed bridges, bent rails, and most buildings destroyed are indicative of ________ intensity?
A) IV B) VII C) IX D) XI
Slopes that drop or rise sharply in elevation are
A. plains. B. steep. C. contours.
A hypothesis is ________
A) a prediction about something that has not yet been observed B) the design of an experiment that can be used in scientific inquiry C) a statement that explains an observed phenomenon or answers a question D) a proven scientific fact
One commonly used way to improve a numerical model forecast is to:
A) eliminate portions of the model that aren't contributing to the forecast. B) reformulate the model after every forecast to correct errors. C) statistically assess errors that the model makes repeatedly and adjust the forecast accordingly. D) simplify the model's assumptions.