A. Radio waves
B. Ultrasonic waves
C. Harmonic waves
D. None of above
A. Shoulder Bone
B. Knee Bone
C. Scalp Bone
D. None of these
A. Indian Ocean
B. Pacific Ocean
C. Arctic Ocean
D. Atlantic Ocean
A. Sweden
B. Switzerland
C. Ireland
D. None of Land
A. Bhutan
B. Indonesia
C. Nepal
D. None of these