Lead source can help you to determine how to proceed and can tell how it is created. In lead source the XX helps in identifying the action the user made.
The main source of lead will have to be Galena
Galena is the source
The Source mean ..................
The main source of lead exposure in humans is through contaminated water, paint, soil, and dust. Lead can also be found in certain consumer products such as traditional medicines, cosmetics, and pottery. Additionally, occupational exposure to lead in industries like mining, battery manufacturing, and construction is another significant source of lead exposure.
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Spain, Sardinia.
granite
it has no lead in it ......
It mean a
The ore galena (lead II sulfide) is the major source of lead.
It is the natural mineral form of lead sulphide. It is an important ore of lead and a source of silver