Which of the following is a benefit of using nuclear power?
A) Core meltdown of reactors can provide "bonus" energy for electricity production.
B) The increasing costs of nonrenewable energy sources make nuclear energy more economically viable.
C) Mining activities enhance ecosystems.
D) Using nuclear power causes more use of fossil fuels.
E) Few greenhouse gases are emitted.
E
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Which of the following statements regarding a nucleon is true in regards to nuclear reactions?
A. The number of nucleons changes in a nuclear reaction, therefore the mass changes. B. A nucleon inside a nucleus has a lower mass than a nucleon outside of the nucleus. C. A nucleon is more stable outside the nucleus. D. A nucleon has a higher energy inside a nucleus and releases it when it undergoes nuclear reactions. E. A nucleon's mass is constant.
Midlatitude waters are generally fresher than polar or subtropical zones because
A) more evaporation, more frontal precipitation. B) more evaporation, less frontal precipitation. C) less evaporation, less frontal precipitation. D) less evaporation, more frontal precipitation.
Which of the following environments would likely have clasts smaller than sand?
A. dunes formed by wind B. steep slopes C. a weak current D. All of these choices are correct.
An area is found to have a high rate of erosion. What kind of sediment is likely to be in the surrounding waters?
A) Well-sorted sediments B) Poorly sorted sediments C) One size of sediment D) None of these choices