Assertion: Excess of nitrates in drinking wat | vedclass

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(A) Excess of nitrates in drinking water is harmful to human health and can be fatal for infants. Excessive use of fertilizers often leads to the accu

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) Excess of nitrates in drinking water is harmful to human health and can be fatal for infants. Excessive use of fertilizers often leads to the accumulation of nitrates in water sources. In infants, excess nitrate reacts with haemoglobin to form non-functional methaemoglobin, which impairs oxygen transport in the blood. This condition is clinically termed as methaemoglobinemia or $blue 	ext{ } baby 	ext{ } syndrome$. This disease can damage the respiratory and vascular systems and may lead to severe suffocation.

Assertion: Excess of nitrates in drinking water is harmful for infants.
Reason: Nitrates are responsible for blue baby syndrome.

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Assertion: Excess of nitrates in drinking water is harmful for infants.Reason: Nitrates are responsible for blue baby syndrome.