Thermal pollution of water increases its toxicity and oxidation of oxy – McqOptions

MCQOPTIONS

1.	Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10Â°C, doubles the toxic effects of __________ present in it.
A.	coal ash
B.	potassium cyanide
C.	ortho-xylene
D.	none of these
Answer» C. ortho-xylene

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