It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______?
A. pitch
B. Frequency
C. Time period
D. Quality
E. None of these
It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______?
A. pitch
B. Frequency
C. Time period
D. Quality
E. None of these