1.

A group of scientists recently discovered two materials that are capable of resisting temperatures of nearly 4000 degrees Celsius. These two materials are

A. Sodium silicate & hafnium carbide
B. Tantalum carbide & hafnium carbide
C. Sodium silicate & tantalum carbide
D. Coated nylon and mineral wool
Answer» C. Sodium silicate & tantalum carbide


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