1 Putting green: The putting green, or green, is where the hole for each fairway is located. 2  Hazards: Also called traps, hazards are purposely-placed elements that are designed to be especially difficult to get a golf ball out of. 3  Common hazards include sand traps and bodies of water.. Know the object of the game. The object of golf is to strike the golf ball with a long-handled instrument called a club and guide it into each hole on the course in order. A number of holes, usually 9 or 18, are played and the final results are tallied after the last player has sunk the ball in the final hole.
(plural inner cores). 1  Used other than as an idiom: see inner ,â core. ( 2 planetology) The solid material found in the centre of some planets at extremely high temperature and pressure, distinct from the liquid outer core. ( 3 geology) The innermost part of the Earth, believed to be made of a nickel-iron alloy. 4  Link/Cite.
The core (C), beneath the mantle (B), is the deepest and hottest layer of the Earth. It is made almost entirely of metal. The core is made of two layers: the outer core, which borders the mantle, and the inner core. The inner core is shaped like a ball. Iron and nickel in the outer core form an alloy, or a mixture of metallic elements. The outer core is approximately 2,300 kilometers thick and very hot, between 4,000 and 5,000 degrees Celsius. The inner core is made mostly of iron. It is about 1,200 kilometers thick.