The variety in the genetic makeup of individuals in a population is known as ____.
A. heritability
B. gene flow
C. genetic variability
D. genetic differences
E. genetic drift
Answer: C
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Which of the following is an example of a secondary volcanic hazard?
a. lava flows b. pyroclastic flows c. ash falls d. volcanic gases e. lahars
Which of the following is the best description for structural geology?
A) Study of intergrown mineral crystals in igneous rocks B) Study of sequences of sedimentary rocks and how their environments of deposition dictate how sediments are laid down C) Study of earthquakes and how they move through Earth's interior D) Study of rock deformation in response to tectonic forces
Why does the temperature of the stratosphere increase with increasing altitude?
A. The density of ultraviolet radiation decreases. B. The reflection of ultraviolet radiation increases. C. The density of stratospheric ozone decreases. D. The absorption of ultraviolet radiation increases. E. The ozone hole allows an increase of insolation.
The effect of a new dam and reservoir on a river would be
A. increased deposition downstream of the dam. B. increased erosion upstream of the dam. C. increased erosion downstream of the dam. D. All of the choices are correct.