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.
These are known as metamorphic rock, sedimentary rock, and igneous rock, respectively. Also known as âfire rockâ (derived from the Latin âignusâ), these type of rock are the most common type of rock in the Earthâs surface.