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2nd ary pollutant
Acidic dye
Vitamin
Plant hormone
Person Who among the following is colourblind cannot distinguish between
Pesticides are used to destroy
Petroleum is found in
pH of human blood is between
Phenol is a raw material used in the manufacture of
Phosgene can be used as
Phosphorus is kept in water as
Photo oxidation process is initiated by -
Photo-oxidation is
Photoelectric effect was discovered by