(lead as a noun) Someone has stolen the lead off the church roof again. The ancient Romans, who had few sweeteners besides honey, would boil must (grape juice) in lead … Lead is a present tense verb, meaning to guide. The metal has been used since ancient times.
Tetraethyl lead (PbEt 4) is still used in some grades of petrol (gasoline) but is being phased out on environmental grounds. History of Lead.
Lead is a soft, malleable, ductile, bluish-white, dense metallic element, extracted chiefly from galena and found in ore with zinc, silver and copper. (It is a noun.) A: "Lead" has two specific meanings. In fact, former president George H. W. Bush banned the use of lead shot for use on waterfowl in 1991 after it was proved that lead was sickening migratory wetland bird populations. Lead in household dust results from indoor sources such as deteriorating lead-based paint. Lead pencils aren't actually made out of lead… Even the Romans knew about lead poisoning - the doctor Cornelius Celsus warned about the bad effects of lead white, used in paint and cosmetics, while the engineer Vitruvius recommended earthenware pipes over lead … The symbol Pb for lead is an abbreviation of the Latin word for lead, plumbum. Led definition is - past tense and past participle of lead When to use lead or led Known in antiquity and believed by the alchemists to be the oldest of metals, lead is highly durable and resistant to corrosion, as is indicated by the continuing use of lead water pipes installed by the ancient Romans. Its use was widespread in ancient Assyria, from around 2000BC, with lead animal heads being used as currency. It's labeled on the periodic table as "Pb" and sometimes found in really old paint. Lead Acetate could be used as a sweetener, like other lead(II) salts, lead(II) acetate has a sweet taste, which has led to its use as a sugar substitute throughout history.
The U.S. government banned lead paint in 1978. Lead is a naturally occurring bluish-gray metal found in small amounts in the earth's crust.
Lead can be found in all parts of our environment – the air, the soil, the water, and even inside our homes. Lead is a major constituent of the lead-acid battery used extensively in car batteries. The U.S. government banned lead paint in 1978. History of Lead. It's labeled on the periodic table as "Pb" and sometimes found in really old paint. Led is lead past tense. Much of our exposure comes from human activities including the use of fossil fuels including past use of leaded gasoline, some types of industrial facilities, and past use of lead … In the UK, it is illegal to use lead for weights in fresh-water fishing. This video is about a sentence structure 'Lead to' It is used for given situation: Ex: Is tarah ka khana motape tak le jayega. (lead as a noun) lead ore Led Lead has many different uses.