Recently in the news, what does the term “echolocation” refer to? – McqOptions

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1.	Recently in the news, what does the term “echolocation” refer to?
A.	An instrument used to measure the proper acceleration of a body
B.	Low frequency sounds to determine the location of objects
C.	Branch of physics dealing with the production, transmission, and effects of sound
D.	The height of a wave as measured from its centre (normal) position
Answer» C. Branch of physics dealing with the production, transmission, and effects of sound

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