*$_Presence of nitrates in water in excess of 50 ppm causes? – McqOptions

MCQOPTIONS

1.	*$_Presence of nitrates in water in excess of 50 ppm causes?
A.	Mathenoglobenemia
B.	Gastroentetitis
C.	Asphyxiation
D.	Tooth decay
Answer» B. Gastroentetitis

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