Devils Tower was formed by
A. accumulations of windblown sand.
B. solidification of a magma chamber.
C. sedimentation from river deposits.
Answer: B
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Which one of the following is likely to be associated with a loss of genetic diversity in a local population of a species?
A. The arrival of individuals of the same species from distant populations. B. Genetic mutations. C. A 90% reduction in the size of the population. D. Mating with individuals from other populations.
A parcel of air has a temperature of 0 degrees C as it crosses a mountain range at 3000 meters. If it descends, what will its temperature be when it reaches sea level?
15 degrees C 30 degrees C 0 degrees C 40 degrees C
Which of the following are associated with turbidity currents?
A. submarine canyons B. graded beds C. a dense slurry of water and sediment that moves downhill D. submarine fans E. All of these choices are correct.
What is the effect of temperate on vapor pressure?
a. As temperature increases, vapor pressure increases b. As temperature increases, vapor pressure decreases c. As temperature decreases, vapor pressure increases d. It varies with properties of the specific material