________ and sapphire are both varieties of the common mineral corundum.
A. Ruby
B. Turquoise
C. Peridot
D. Beryl
E. Emerald
Answer: A
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Which of the following hurricanes was the most costly hurricane ever to hit North America?
A. Camille B. Andrew C. Katrina D. Sandy
Which of the following molecules is not a straight-chain hydrocarbon?
A. a B. b C. c D. All of the above are straight-chain hydrocarbons. E. None of the above are straight-chain hydrocarbons.
The paleomagnetism of geologically recent rocks from different continents is generally consistent with Earth's current magnetic field, whereas ancient rocks show different orientations
Indicate whether the statement is true or false
Hurricanes cannot form along the equator because ____
A) there isn't much water along the equator B) the Coriolis force is too small along the equator C) there are no feedback mechanisms along the equator D) it's too humid for the ocean water to evaporate