Which of the following will float on water?
A) decane
B) hexane
C) octane
D) all of them
D
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In 1964, 12 people were killed during a tsunami at Crescent City, California. All of these fatalities were caused by the ________ wave, which was the highest in the series.
A. first B. fifth C. third D. second E. fourth
There were only four glacial ice advances during the Pleistocene
a. True b. False Indicate whether the statement is true or false
When a thunderstorm is located on the high plains east of the Rocky Mountains, a much larger portion of the storm will typically be located above the freezing level, so hail has a better chance of occurring
a. True b. False
What is the basis for the use of hydrogen fuel cells?
A. It is extremely energy-efficient. B. It has not been demonstrated to work for powering vehicles. C. It is an example of a renewable energy source in action. D. It will result in the release of pollution to the atmosphere.