science
investment
100

newton 3rd law 

for every reaction there is an equal and opposite reaction

100

who discovered the electricity

Thomas Edison

200

closet planet to the sun

mercury

200

the Arabic scientific who started ophthalmology ?

ibn Al hythem 

300

largest body organ

liver


300

the father of Atomic bomb

Robbert Oppenhimer

500

highest element in human body

nitrogen

500

who invented the antibiotics

Alexender Fleming
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