Which naturally emitted gas, accumulating in indoor spaces, has been linked with lung cancer in humans?
A) mercury
B) ozone
C) asbestos
D) carbon monoxide
E) radon
E
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Which of the following would be a negative ion with a single charge?
A. an atom with 10 protons and 12 electrons B. an atom with 12 protons and 11 electrons C. an atom with 11 protons and 12 electrons D. an atom with 11 protons and 11 electrons E. none of the above
On a weather map of the northern hemisphere, in which of the following locations are westerlies observed?
A. south of the tropical highs B. between the subpolar lows and the subtropical highs C. north of the subpolar lows D. between the doldrums and the horse latitudes
The complementary color of blue is
A) red. B) green. C) yellow. D) cyan. E) magenta.
Which of the following rocks are Nonfoliated Metamorphic Rocks?
a. Marble b. Slate c. Quartzite d. Schist e. Both a and c