in Excretory Products and their Elimination (Urinary System) by

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Sweat is a watery fluid and contains 99% water and large amounts of Sodium Chloride (NaCl).

It also contains some metabolic wastes like urea, uric acid and ammonia.

It also has Lactic acid, antibodies, Vitamin-D, amino acids and glucose.

It is normally acidic having pH 4 - 6.

They composition of sweat depends upon diet and heredity.