Question

how is stained glass made? a. adding metallic oxides to sand and ash or lime, then infusing at high temperatures b. adding metallic oxides to salt, then infusing over time at low temperatures c. adding metallic oxides to sulfur, then infusing at high temperatures d. adding metallic oxides to sulfur, then infusing at low temperatures please select the best answer from the choices provided

Explanation:

Stained glass is made by adding metallic oxides to sand and ash or lime, then fusing at high temperatures. Sand (silica) is the main component of glass, and ash or lime acts as a flux to lower the melting - point. Metallic oxides are added for color. High - temperature fusion is required to form the glass structure.

Answer:

a. adding metallic oxides to sand and ash or lime, then infusing at high temperatures