Cloud formation is an example of _____ and _____ the air.
A) evaporation; cools
B) condensation; cools
C) evaporation; warms
D) condensation; warms
E) sublimation; cools
Answer: D) condensation; warms
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Voltage can be induced in a wire by
A) moving the wire near a magnet. B) moving a magnet near the wire. C) changing the current in a nearby wire. D) all of the above E) none of the above
After three half-lives, a radioactive element will have ____ of its original parent atoms
a. 1/2 b. 1/6 c. 1/3 d. 1/8 e. 1/32
It is 8 p.m. on January 20 in the Central Time Zone. In Greenwich, England it is
A) 1 a.m. on January 21. B) 2 p.m. on January 21. C) 11 p.m. on January 20. D) 1300 on January 20. E) 2 a.m. on January 21.
What are the vertical columns of the periodic table called?
A) families B) periods C) either a or b D) neither a nor b