Rock salt is composed of the mineral ________.
A. halite
B. gypsum
C. dolomite
D. calcite
E. trona
Answer: A
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U.S. deserts in Nevada and northern Arizona are largely the result of the Sierra Nevada Mountains ________.
A. deflation B. south wind C. volcanism D. rain shadow E. combined with Coriolis Force
In the open ocean, what is the correct order of pelagic zones from surface to bottom?
a. mesopelagic, bathypelagic, abyssopelagic, epipelagic b. abyssopelagic, bathypelagic, mesopelagic, epipelagic c. epipelagic, mesopelagic, abyssopelagic, bathypelagic d. epipelagic, mesopelagic, bathypelagic, abyssopelagic e. abyssopelagic, bathypelagic, mesopelagic, epipelagic
Which of the following is not one of the 20 standard amino acids which are the building blocks of proteins, but is in fact sometimes found in proteins?
A) citrulline B) ornithine C) selenocysteine D) xanadine
If a country has a growth rate of 2%, how long will it take to double its population?
What will be an ideal response?