YKS 2020 · Soru 77

(I) Water is of such great importance that it makes up almost two thirds of the human body by weight. (II) It plays a fundamental role in digestion and absorption and in the elimination of indigestible metabolic waste. (III) Water for the body is obtained primarily by drinking and ingesting food as well as through internal chemical reactions. (IV) Water also serves as the basis of the circulatory system, which uses blood to distribute nutrients to the entire body. (V) Moreover, water helps maintain body temperature by expelling excess heat through the skin via sweat and evaporation.