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).
This is where excess crust is subducted and melted as new crust is produced at oceanic ridges. Deep-sea trenches are areas of plate convergence. Volcano locations (red squares above) match closely the regions of trenches (subduction zones) and oceanic ridges (spreading centers). The trenches have crustal friction near the surface and deep into the crust as subduction forces one plate under another.