One to two hours before your workout, drink 15 to 20 ounces of water. 15 minutes before you begin, drink between 8 and 10 ounces of water. During your workout, drink another 8 ounces every 15 minutes.
trench. n. 1. A deep furrow or ditch. 2. A long narrow ditch embanked with its own soil and used for concealment and protection in warfare. 3. A long, steep-sided valley on the ocean floor. v. trenched, trenchÂ·ing, trenchÂ·es. v. tr. 1. To dig or make a trench or trenches in (land or an area, for example).
Ocean trenches are the deepest parts of the ocean, with the Mariana Trench near Guam having the deepest spot on Earth (the Challenger Deep). Most ocean trenches are in the Pacific. The loss of the earth's crust at ocean trenches is made up for by seafloor spreading elsewhere, which is when tectonic plates are pulling apart.