They compared prices at Whole Foods stores in half a dozen cities to those at various competing supermarkets to determine which stores were cheaper. They found that Whole Foods is about 15% more expensive than other conventional supermarkets, such as Kroger, Wegmans, and Safeway.
A type of igneous rock. Basalt is the most common rock type in the earth's crust and makes up most of the ocean floor.
More than 500 million years ago Red Rock Canyon NCA was at the bottom of an ocean basin. Mostly limestone (and dolomite) accumulated in this ocean basin for over 250 million years during the Paleozoic Era. The limestones contain the fossils of sea life that flourished during that time.