Mark the wrong statement with respect to human body.

Moderate

A

The primary function of sweat is to remove the wastes like NaCl, lactic acid, etc.
B

Small amounts of nitrogenous wastes like urea could be eliminated through saliva.
C

Lungs remove large amounts of CO₂ and also significant quantities of water every day.
D

Sebaceous gland secretion provides a protective oily covering for the skin.

Solution

The primary function of sweat is to facilitate a cooling effect on the body surface. Sweat produced by the sweat glands is a watery fluid which also helps in the removal of wastes like NaCl, small amounts of urea, lactic acid, etc.

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