What sort of energy is stored within an object suspended above ground?
A. Magnetic energy
B. Potential energy
C. Chemical energy
D. Kinetic energy
Answer: B. Potential energy
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If Earth's size somehow increased with no change in mass, your weight would
A. decrease. B. increase. C. not change. D. be quite uncertain.
Radiation exposure immediately around a properly functioning nuclear power plant is about
A) 1% greater than the normal environmental background exposure. B) double normal environmental background exposure. C) 10 times higher than normal environmental background exposure. D) 100 times higher than normal environmental background exposure.
Which of the following can cause enzyme activity to either increase or decrease?
A) changing the temperature B) changing the pH C) both a and b D) neither a nor b
Which of the following settings is most likely to have eruptions of basalt?
A. subduction beneath a thin continental plate B. mid-ocean ridge C. subduction beneath a thick continental plate D. island arcs E. None of these choices are correct.