Sound waves are _________ waves.
Sound waves are _________ waves.
A. Transverse
B. Electromagnetic
C. Longitudinal
D. None of these
A. Transverse
B. Electromagnetic
C. Longitudinal
D. None of these
A. 62
B. 73
C. 79
D.53
A. a series of refractions
B. a series of reflections
C. a surface tension phenomenon
D. multiple diminishing brightness
A. Western lights
B. Southern lights
C. Eastern lights
D. Northern lights
On passing through food stuff, X-ray can kill the___________?
A. Fungus
B. Virus
C. Bacteria
D. insects
The deepest place on earth is ____________?
A. Trench
B. Mariana Trench
C. Mangrove
D. Groove
E. None of these
Ununoctium is the heaviest element, but it is man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).