?A steep drop in plastics production in 2008-2009 can be attributed to the ____.
A. ?World Trade Center bombing
B. ?financial crisis that started in 2008
C. ?wars in Afghanistan and Iraq
D. ?demand for crude oil
Answer: B
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Which of the following is not part of the air brake system?
a. Air dryer b. Radio signal system c. Foot valve d. Check valve e. Safety Valve
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Compared to upland soils, wetland soils would be characterized by an abundance of ________
A) NO3- B) methane C) SO42- D) Fe3+ E) CO2
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The D-ring or support point on a safety harness should be placed _____.