Leukemia is a disease of the___________?
Leukemia is a disease of the___________?
A. Lungs
B. Blood
C. Skin
D. Nerves
Leukemia is a disease of the___________?
A. Lungs
B. Blood
C. Skin
D. Nerves
Which of the following cells are Colourless?
A. Red blood cells
B. White blood cells
C. Monocytes
D. platelets
A. Male frog can magnify their voice with the help of sound box.
B. Male frog have three pair of vocal cord
C. Female frog have larynx but no vocal cord
D. Female frog have no larynx
A. Focal Length
B. Radius of Curvature
C. Power
D. Magnification
The distance between the optical centre and principal focus of a lens is called focal length. Focal length of a lens depends on the refractive index of the glass and its curvature.
The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from____________ ?
A. Ionosphere
B. Troposphere
C. Mesosphere
D. Stratosphere
E. None of these
A. behind him
B. in front of him
C. into his hand
D. by his side