Which air pollutant can cause cancer in humans?
A. benzene
B. methane
C. ozone
D. sulfuric acid
Answer: A
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Urban primacy occurs when
A) a country has a city three to four times larger than any other city in the country. B) the number of people residing in cities has exceeded that of those residing in rural areas. C) people in cities receive lower tax rates. D) a country implements a policy to reduce urban sprawl. E) a country's population is greater than 80 percent urban.
Where did the atoms that make up a newborn baby originate?
A) in the womb of the baby's mother B) in the digestion of the food that the mother ate C) in the earth through geological processes D) in the explosions of ancient stars
A fine-grained, foliated metamorphic rock that exhibits a silky sheen is classified as a
A) slate. B) schist. C) hornfels. D) phyllite.
Weather and climate have become so much a part of our lives that the first thing many of us do in the morning is listen to the local weather forecast. For this reason, many radio and television newscasts require that the weathercaster be certified by the American Meteorological Society (AMS)
Indicate whether the statement is true or false