Fusion temperature of pure silica (SiO‚Äö√á√á) is __________ ¬¨‚àûC.?

Fusion temperature of pure silica (SiO‚Äö√á√á) is __________

1.	Fusion temperature of pure silica (SiO‚Äö√á√á) is __________ ¬¨‚àûC.?
A.	1350
B.	1715
C.	2570
D.	2800
Answer» C. 2570