Chemical Process
DDT stands for

Diethyl-diphenyl-trichloromethane
Diphenyl-dichloro-trichloromethane
Dichloro-diphenyl-trichloroethane
Dichloro-diphenyl-trichloromethane

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Chemical Process
Pasteurisation of milk means

Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics
Removal of fatty and albuminous substance from it
Inhibiting the growth of micro-organisms without killing them
None of these

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