Volatile organic compounds (VOCs)
A. contribute to the development of photochemical smog.
B. are released from many household chemicals.
C. are less common in vehicle exhaust because of catalytic converters.
D. All of the statements are correct.
E. None of the statements are correct.
Answer: D
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Which of the following expands most when the temperature is lowered? Equal volumes of
A) iron. B) wood. C) helium. D) water at 4°C. E) None expand when the temperature is lowered.
Those countries of the world that have surpluses of food are fortunate because none of their people go hungry
Indicate whether the statement is true or false.
Which is not a reason why a refined oil spill is more harmful?
a. The oil contains more energy potential due to additives during the refinement process. b. There are more biologically active components remaining in refined oil. c. The refining process removes heavier components. d. There are components that are added to oil which are deadly.
What is the Qori Kalis?
A) a retreating Andean glacier B) a sinking Caribbean island C) a coastal ecosystem experiencing sea-level rise D) a hurricane in Central America E) none of the above