A. 3
B. 4
C. 7
D. 5
A. activated by man
B. naturally activated
C. chemically activated
D. absolutely inactivated
A. a negative charge
B. a positive charge
C. no charge
D. both the charges
A. Boyle’s law
B. Charles’ law
C. Archimedes principle
D. None of above
A. pure
B. aerobic
C. pathogenic
D. auto-tropic
A. nitrogen
B. sulphur
C. carbon
D. sodium
A. Newton’s Second Law of Motion
B. Newton’s Third Law of Motion
C. Newton’s First Law of Motion
D. None of above
A. exactly roundish
B. elliptical
C. roundish but uneven
D. cicok-wise during day and anti-clockwise
A. billion miles
B. trillion miles
C. light years
D. cosmic years
A. science of the various kinds of serum
B. artificial rearing of fish
C. art of silkworm breeding
D. study of various cultures of a community
