Everyday ScienceInventions, Discoveries and Explorations
Circulation of blood in the body was discovered by
Joseph Lister
Roberal Hooke
Jonas Salk
William Harvey
William Harvey
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
Who invented bifocal lenses for glasses?
A. Alfred B. Nobel
B. Thomas Alva Edison
C. Benjamin Franklin
D. Rudolf Diesel
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
In the body, the weight of blood is about
A. 1/12th of body
B. 1/5th of body
C. 1/8th of body
D. 1/4th of body
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
The energy stored in coal is
A. kinetic energy
B. potential energy
C. chemical energy
D. nuclear energy
A human breath per minute is
A. 16-30 times
B. 16-20 times
C. 15-20 times
D. 15-18 times
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