A. Ultraviolet
B. Sound
C. Infra-Red
D. Micro
Submitted by: Malik Asghar Hussain
Correct Answer: Sound ✔
Last Updated: January 20, 2021
A. Ultraviolet
B. Sound
C. Infra-Red
D. Micro
Submitted by: Malik Asghar Hussain
Correct Answer: Sound ✔
Last Updated: January 20, 2021