Differences in emissivity of a substance are governed by differences in
A) moisture.
B) pressure.
C) temperature.
D) wind speed.
Answer: C
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Thermal energy is affected by motion that is
A. translational. B. vibrational. C. rotational. D. all of the above
Human geographers, like most social scientists, begin with
A) model formation. B) observation. C) statistical analysis. D) data visualization.
Fronts:
A) are rarely involved with cloud formation. B) have substantial temperature gradients at their boundaries. C) are best imagined as vertical walls of air. D) come in three major varieties—cold, warm, and mixed.
In 1974, Dr. Rowland and Dr. Molina made what observation vis-à-vis ozone (O3 )?
A) Anthropogenic O3 releases were a major culprit in global warming. B) Automobile exhaust and sunlight were producing photochemical smog. C) Photochemical interactions occur between chlorofluorocarbons and O3. D) CFC use at current levels had little effect on O3. E) Ground-level O3 irritates human eyes and respiratory systems.