If you rub a rubber rod with fur, the rod becomes
A. negatively charged.
B. positively charged.
C. both
D. neither
Answer: A
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a. House A b. House B c. House C d. House D
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Defined by breaking waves in the surf zone, which two terms describe the directions of water movement associated with a wave breaking on the beach?
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A) 10-15 B) 20-25 C) 15-20 D) 2-4 E) 5-10