Blood, urine, sweat, stomach acid, mucus, saliva, and spinal fluid.
it depends on which body fluid you are refering to can your rephrase your question to be more specific?
aids in lubrication
NO, digestive acid is an acid
Mainly water.
Blood. You have roughly 10 pints of blood in your body. No other fluid in your body reaches that volume so the blood wins.
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