What causes the turbulence observed in molten gold?

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Contaminants present in the goldInadequate venting during meltingBoth contaminants and poor ventingNeither of these factors

Explanation

The turbulence in molten gold is not caused by impurities or venting issues. Therefore, none of the listed factors are responsible for this phenomenon.

What causes the turbulence observed in molten gold? — Dental Materials | PakQuizHub