Which organic compound is produced in the largest amount by the chemical industry?
A) acetylene
B) benzene
C) ethane
D) ethylene
D
Environmental & Atmospheric Sciences
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Which of the following molecules contains a polar bond?
A) H-F B) Cl-Cl C) H-H D) F-F E) all of the above
Environmental & Atmospheric Sciences
What aluminosilicate polymorph is stable at a pressure of 1.5 kilobars and a temperature of 600 degrees C?
A) sillimanite B) kyanite C) sillimanite and kyanite D) andalusite
Environmental & Atmospheric Sciences
What percent age of the U.S. population lives with unhealthy levels of air pollution
A) 33% B) 41% C) 59% D) 62%
Environmental & Atmospheric Sciences
Because air temperatures normally decrease with increasing height, trees found on the cooler north-facing side of mountains are often those that usually grow
a. ?at lower elevations. b. ?near the Arctic circle. c. ?in arid climates. d. ?near the equator. e. ?at higher elevations.
Environmental & Atmospheric Sciences