What is the vapor density of air?
a. 1
b. 0
c. 14.7
d. 7
Answer: a. 1
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How many volcanic peaks are known to exist on the Pacific sea floor?
A) < 5,000 B) 5,000 to 10,000 C) 10,000 to 15,000 D) 15,000 to 20,000 E) > 20,000
A negatively charged rod is brought near a metal can that rests on a wood table. You touch the opposite side of the can momentarily with your finger. The can is then
A) positively charged. B) negatively charged. C) uncharged. D) charged the same as it was.
Why do consumers require more service products today than in the past?
A) Physical commodities are becoming more complicated. B) As work requires more hours on the job, people have less time to do things themselves. C) Marketers persuade us to consume new types of services. D) As income rises, people can afford more services. E) all of the above
The carbon dioxide occurring naturally in the air dissolves in precipitation, making it slightly acidic with a pH between ____
a. ?3.0 and 3.6 b. ?4.0 and 4.6 c. ?5.0 and 5.6 d. ?6.0 and 6.6 e. ?7.0 and 7.6