Jenifer Lewis. For other people named Jennifer Lewis, see Jennifer Lewis (disambiguation). Jenifer Jeanette Lewis (born January 25, 1957) is an American actress and comedian. She began her career appearing in Broadway musicals and worked as a back-up singer for Bette Midler, before appearing in films Beaches (1988) and Sister Act (1992).
1. (Geological Science) the boundary between the earth's crust and mantle, across which there is a sudden change in the velocity of seismic waves. Often shortened to: Moho. [C20: named after Andrija MohoroviÄiÄ (1857-1936), Croatian geologist].
Continental and oceanic crust, USGS. What is the Moho boundary. The speed of earthquake waves led to the discovery of the boundary between the Earths crust and the mantle. The Mohorovicic Discontinuity (MOHO) is the boundary between these two layers.arths Crust. Introduction. The Earths crust is the outermost layer of our planet and is less than 1% of the Earth's volume. The crust and the mantle contain different kinds of rocks making them chemically different. The upper mantle rocks are primarily peridotite.