The highest death tolls from earthquakes are generally due to
A. substandard construction practices.
B. high population densities.
C. people living in areas with high risks for earthquakes.
D. All of these choices are correct.
Answer: D
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All of the following involve the input of energy EXCEPT
A. evaporation. B. freezing. C. melting. D. sublimation.
Why do wind directions not remain the same year round?
A) The Coriolis effect is a seasonal effect. B) Lower air pressure over the continents in the summer. C) Land and ocean surfaces heat evenly. D) Atmospheric convection only occurs in the summer.
The compression of small biological particles into fecal pellets increases the rate at which they sink to the
bottom of the ocean. a. True b. False
Genetic diversity is lost in a small population when
A. Only a few individuals survive a catastrophe B. Genetic mutations cause most individuals in a population to have similar genetic makeup C. Individuals from other populations are introduced into the population and the genes are diluted D. The ecological diversity is high E. Genetic mutations cause some individuals in a population to be different in coloration or size