One of the main topics discussed in the opening two-page spread of Chapter 1 (The Nature of Earth Science) was
A. a huge meteorite impact caused the dinosaurs to become extinct.
B. that volcanoes have dramatically changed the atmosphere over time.
C. that the two sides of North America are very different.
D. All of these were mentioned.
Answer: C
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If a nonrotating object has no acceleration, then we can say for certain that it is
A) at rest. B) moving at constant nonzero velocity. C) in mechanical equilibrium. D) all of the above E) none of the above
Numerical weather prediction involves: a. an analysis of past weather
b. modern forecasting tools using high-speed computers. c. old-fashioned weather watching. d. weather forecasting through analogues.
How do desert tortoises survive the temperature extremes of southwestern deserts?
A) Stay underwater, using waterholes and rivers to cool down. B) They sweat to cool down. C) They spend much of their lives underground in burrows. D) They pack cooling mud on and within their shells.
What is the longest river on Earth?
A. Mississippi B. Colorado C. Nile