The consequences of a comet's tail sweeping across the Earth would be
A) virtually nil.
B) likely catastrophic.
C) like an enhanced Aurora Borealis worldwide.
D) quite unpredictable.
A
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How many calories must be removed from 4 g of water at 10°C to convert it into ice at 0°C?
A. 90 calories B. 270 calories C. 360 calories D. 450 calories E. 180 calories
The field of environmental science is considered interdisciplinary because it ____.
A. involves rigorous study of the environment B. includes topics that are not explored in other disciplines C. often assigns responsibility to those who cause environmental degradation D. is rapidly evolving over time into a different form of science E. incorporates work fromthe fields of biology, chemistry, geology, social sciences, and the humanities
The building blocks for major world regions are
A. countries B. globes C. counties D. states
A central circle on a station model that is 75 percent black and 25 percent white tells you
A) there is a 75 percent chance of rain. B) the cloud cover ranges over 70 to 80 percent of the sky. C) the northwest quadrant of the sky is clear, while the remainder of the sky is cloudy. D) it is currently raining in moderate amounts.