A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon
Author Archives: Rao Tahir
A. 4
B. 5
C. 6
D. 7
A. Nitrogen
B. Carbon dioxide
C. Methane
D. Tetrafluoroethane
A. Star
B. Planet
C. Asteroid
D. Meteor
A. motor
B. generator
C. moving-coil meter
D. battery
A. Kelvin
B. Thomson
C. Rutherford
D. Bacquerel
A. 1 g/cm3
B. 1.5 g/cm3
C. 2 g/cm3
D. none of these
A. 60
B. 120
C. 180
D. 240
A. also decrease
B. increase
C. remains constant
D. none of these
A. Night blindness
B. rickets
C. scurvy
D. hair fall