The Depth of the Water

Water is one of the most common sub­stances around us, but yet it is one of the most important compounds necessary for life. Beside these uses for water which we see around us every day such as hydro-electric power, transportation, and crop growth; there are many bio­logical uses which are unconsciously tak­ing place constantly. Next to man’s de­sire for air, ranks his desire for water. One cannot realize his great dependence upon water until he is deprived of it. Water plays a very important...