Silica may not be a word you commonly hear associated with diet (or foods that prevent hair loss, for that matter). If youâre looking to promote hair growth and prevent hair loss, however, silica will need to be on your menu.
keystone-the central building block at the top of an arch or vault. headstone, key. arch - (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it. building block-a block of material used in construction work.
The Keystone Pipeline (Phase I), delivering oil from Hardisty, Alberta, over 3,456 kilometres (2,147 mi) to the junction at Steele City, Nebraska, and on to Wood River Refinery in Roxana, Illinois, and Patoka Oil Terminal Hub (tank farm) north of Patoka, Illinois, completed in June 2010.