Multiple Choice
People can detect sounds ranging in frequency from _____ to _____.
A) 20 dB; 20,000 dB
B) 50 dB; 50,000 dB
C) 20 cycles per second; 20,000 cycles per second
D) 50 cycles per second; 50,000 cycles per second
Correct Answer:

Verified
Correct Answer:
Verified
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