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General Science

General Science
The major ingredient of leather is:

Collagen
Nucleic acid
Polymer
Carbohydrate

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General Science
Non stick cooking utensils are coated with

Teflon
polystyrene
PVC
Black paint

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General Science
Very small time intervals are accurately measure by

Quartz clocks
Pulsars
Atomic clocks
White dwarfs

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General Science
From which mineral is radium obtained?

Haematite
Limestone
Rutile
Pitchblende

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General Science
In an atomic explosion, enormous energy is released which is due to

Conversion of mechanical energy into nuclear energy
Conversion of chemical energy into heat energy
Conversion of mass into energy
Conversion of neutrons into protons

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General Science
Chlorophyll is a naturally occurring chelate compound in which central metal is

Iron
Magnesium
Calcium
Copper

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