The market began to emphasize the high-volume pig during which of the following decades?
a. 1950s c. 1980s
b. 1960s d. 1990s
c. 1980s
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What does the post, or downstream, oxygen sensor (HO2S) measure?
A) Amount of oxygen in front of the catalytic converter B) Amount of H2O in front of the catalytic converter C) Amount of oxygen behind the catalytic converter D) Amount of H2O behind the catalytic converter
While examining a R-134a system through the sight glass, the refrigerant appears to be cloudy. Which of the following would probably be the cause?
A. low refrigerant level B. high refrigerant level C. contamination caused by desiccant breakdown D. undercharge of oil in the system
Why was the incident at Love Canal, which was related to the toxicity of hazardous wastes, an important case in the history of U.S. environmental policies?
What will be an ideal response?
In 2000, total U.S. meat consumption reached ____ pounds per person.
Fill in the blank(s) with the appropriate word(s).