What is a common hazard of this type of volcano?
A. volcanic mudflows and landslides
B. burning, building collapse, and suffocation from an eruption column and pyroclastic flows
C. relatively small pyroclastic eruptions caused by localized explosions or collapse
D. All of these choices are correct.
Answer: D
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Automobile headlights are wired in
A. parallel. B. series. C. either works as well D. none of the above
Which of the following involves energy storage in the water molecule in the form of latent heat?
A. melting, evaporation, sublimation B. freezing, condensation, deposition C. condensation, evaporation, deposition, sublimation D. melting, freezing, condensation, deposition
The site on the accompanying figure that would most likely form a rock with large crystals is:
A. A B. B C. C D. D E. E
Four companies, Alpha, Beta, Gamma and Delta, are burning coal to produce electricity. As a result, they also produce emissions. The first row of the table below shows the total pounds of emissions currently produced by each firm. The other rows of the table show the cost for each firm of reducing emissions by the first 50 tons, the second 50 tons, and so on. The government wants to reduce emissions by one third, and does so by issuing marketable permits based on the current level of emissions where the permits will shrink the allowable amount of pollution by one third. Alpha will reduce emissions by ____ tons, Beta will reduce emissions by ____ tons, Gamma will reduce emissions by ____ tons, Delta will reduce emissions by ____ tons, for a total cost of ____.
A. 50, 150, 50, 250, $130 B. 50, 200, 0, 250, $150 C. 0, 200, 50, 250, $120 D. 50, 200, 50, 200, $100