What is the expansion ratio of propane?
a. 270:1
b. 1150:1
c. 60:1
d. 1700:1
Ans: a. 270:1
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Convergent boundaries are areas of
A. tensional forces that stretch the crust and generate a spreading center. B. plate collision. C. compressional forces that crunch the crust and generate a spreading center. D. crustal formation.
On this map, identify the letter that is over the Pacific Ocean.
A) A
B) B
C) C
D) D
E) Feature is not labeled.
Why do many health organizations call for local exceptions to the ban on DDT?
A) A cure for Minamata disease has been found B) DDT was blamed for problems it never actually caused. C) Fish no longer eat the plankton that cause DDT biomagnification D) Outbreaks of malaria have dramatically increased E) The pelican population needs to be reduced
In many developing countries a primary indoor air pollutant is ________
A) VOCs B) asbestos C) cigarette smoke D) radon E) smoke from wood-fueled stoves