MTBE is a gasoline additive
A. intended to reduce carbon monoxide in vehicle exhaust and evaporates before entering groundwater.
B. which evaporates before entering groundwater.
C. that is a very serious source of groundwater pollution in the United States.
D. intended to reduce carbon monoxide in vehicle exhaust and is a very serious source of groundwater pollution in the United States.
E. intended to reduce carbon monoxide in vehicle exhaust.
Answer: D
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Which of the following would be considered a heterogeneous mixture?
A. vinegar B. water C. milk D. vegetable oil E. salad dressing
Why hasn't the Caribbean Sea supported large commercial fishing operations?
A) Other resources are much more valuable. B) The quantity of any one species in the Caribbean Sea is limited. C) A regional environmental agreement prohibits commercial fishing. D) Contamination of the water by raw sewage has made the fish in the Caribbean Sea too dangerous to eat. E) The presence of sharks in the Caribbean Sea makes it too dangerous to fish there.
The Pacific Northwest is at high risk for earthquakes from the _______________ subduction zone
Fill in the blank with correct word.
A mineral has all of the following properties except
A. crystalline. B. being composed of one or more elements. C. inorganic. D. liquid.