Lead to that of primary lead; some refining processes may be skipped depending on the material recycled and its potential contamination. Of the sources of lead for recycling, lead–acid batteries are the most important; lead pipe, sheet, and cable sheathing are also significant. Contrary to popular belief, pencil leads in wooden pencils have never been made from lead. When the pencil originated as a wrapped graphite writing tool, the particular type of graphite used was named "plumbago" (literally, "act for lead" or "lead mockup"). Lead metal has several useful mechanical properties, including high density, low melting point, ductility, and relative inertness.
2–0 lead is the worst lead pundit, to suggest that the final result is still in doubt, thereby maintaining audience interest in a game. There is little evidence that 2-0 is the worst lead in practice. In football, a team leading 2-0 at half-time only goes on to lose the game in about 2% of cases. In ice hockey, statistics show that if a team builds a two-goal advantage, they go on to win the game in the majority of instances, and that a one-goal lead is far more dangerous. As a result, the cliché is often used in full knowledge that 2-0 is not in