Which of the following is true for a nuclear fission reactor?
A. The coolant transfers heat away from the reactor.
B. The control rods increased the number of neutrons present.
C. A moderator causes neutrons to speed up.
D. The fuel actually ends up producing additional fuel.
Answer: A
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Which of the following is a widely held misconception about snowfall and temperature?
A) It's too cold to snow. B) It's too cold to snow a lot. C) Snow only falls at the freezing point. D) none of the above
In Ralph Abercromby’s and Hugo Hildebrandsson’s cloud classification system, each of the four primary cloud groups is identified by the type of precipitation it produces
a. True b. False
At higher altitudes, water will boil at a lower temperature than required at sea level
Indicate whether the statement is true or false
How does the addition of water cause melting?
A. it heats the rocks B. it decreases the pressure on the rocks C. it changes the location of the liquid-solid boundary D. it increases the temperature while decreasing the pressure