Which of the following are all examples of minerals?
a. bronze, steel, glass, aluminum, pencil lead
b. gold, silver, uranium, lead, silica, iron
c. copper, ice, quartz, topaz, diamond, corundum
d. water, mercury, metallic hydrogen, limestone
e. petroleum, coal, iron, feldspar, basalt
C
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The English words fog, bug, ugly, hell, awe and trust, entered the English language from
A) Old Norse, the language of the Vikings. B) Normand, the regional language of western France. C) Catalan, the language of Catalonia in northeastern Spain. D) Zazaki, a language of the Kurds. E) Dravidian, the language family dominant in southern India.
Using sprinklers to prevent crop damage from cold air works best when
a. ?the air is fairly humid. b. ?the air is fairly dry. c. ?the air is dry and hot. d. ?the air is dry and cold. e. ?it’s over 30 degrees Celsius.
During the warm (or positive) phase of the Pacific Decadal Oscillation, unusually cold surface water exists along the west coast of North America, whereas over the central North Pacific, warmer-than-normal surface water prevails.
a. True b. False
Which earthquake wave type travels most slowly?
A) P B) S C) Q D) R E) Surface waves