Bottled water
A. has fewer contaminants than water from a municipal water system.
B. is always distilled.
C. costs more than water from a municipal water system.
D. None of these statements is correct.
Answer: C
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Strictly speaking, it is correct to say that voltage
A. is impressed across a device in a circuit. B. flows across a circuit. C. flows through a circuit. D. all of these
Hypothermia is most common in ____ weather
A) hot, humid B) cold, wet C) hot, dry D) cold, dry
The basis for defining the length of a day is
A) Earth rotates east to west. B) arbitrary, based on a decision of an international committee that met in Washington DC in 1884. C) Earth moves through 365.25 days a year in its orbit about the Sun. D) Earth does not rotate; rather, it revolves. E) Earth rotates on its axis in 24 hours; i.e., it rotates 15° of longitude per hour.
Chemicals or forms of radiation that cause or increase the frequency of DNA mutations are called ____.
A. mutagens B. teratogens C. kerogens D. carcinogens E. neurogens