Microfossils are
A) fossilized microbes
B) the remains of very small dinosaurs
C) the remains of the very first multicellular organisms
D) the remains of the tiny organisms which were first to colonize onto land
A
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Distant bright snowy mountains appear yellowish because
A) they are far away. B) blue has been scattered away from light reflected from the mountains. C) the color yellow looks just right. D) of nature's wonderful preferences.
Olympus Mons is ________
A) a huge volcano on Venus B) a huge volcano on Mars C) a great canyon on Mars D) a large lava plain on the Moon
A transformer with a turns ratio of 20:1 is used to step down 120vac, what is the peak voltage in the secondary?
A. 6.00 V B. 7.33 V C. 170 V D. 8.50 V
Hydrocarbons containing only single bonds are
a. alkanes. b. alkenes. c. aromatics. d. alkynes. e. ketones.