SUPPLY CHAIN DEFINITIONS. Definitions of a supply chain virtually universally encompass the following three functions: i. supply of materials to a manufacturer; ii. the manufacturing process; and, iii. the distribution of finished goods through a network of distributors and retailers to a final customer.
The thickest parts are under the continents and the thinnest parts are under the oceans. Crust. Earth's crust is made up of several elements: oxygen, 47 percent; silicon, 27 percent; aluminum, 8 percent; iron, 5 percent; calcium, 4 percent; magnesium, potassium and sodium, 2 percent. The crust is divided into huge plates that float on the mantle, the next layer.
The crust is the outer hard layer of the Earth, and is less than 1% of Earth's volume. The crust is made up of different types of rocks; igneous, metamorphic, and sedimentary rocks.Below the crust is the mantle. The upper part of the mantle is made up of Peridotite, a rock denser than rocks common in the crust.The crust and the upper mantle make up the Lithosphere. The lithosphere is broken up into tectonic plates that can move.he upper part of the mantle is made up of Peridotite, a rock denser than rocks common in the crust. The crust and the upper mantle make up the Lithosphere. The lithosphere is broken up into tectonic plates that can move.