Definition of a Defective Title Bond. A Defective Title Bond is a surety bond used by individuals when the original title of their property is lost. Property owners can re-establish their ownership and the title of their property through this bond. The process for obtaining a defective title bond is different in every state in the U.S. If the original title of your property is missing, you should obtain a defective title bond immediately to prove that you are the rightful owner.
Best Answer: Any given piece of copper may and likely does contain impurities, but copper as an element is a pure substance. Copper occurs naturally in nature within what are called veins in Geology.
When copper is oxidized by a combination of air, humid and finely divided acid and salts in the air, then a so-called patina of copper is formed. This is a basic copper (II) carbonate/sulfate mix, which has a cyan color. The reason that the color changes is that a chemical compound of copper is formed. Copper itself is a metallic element. Compounds of elements can have totally different properties than the elements themselves (e.g. look at hydrogen and oxygen, these are gasses at room temperature, while the compound water, made of both elements is a liquid at room temperature). A similar thing you see with iron.