MCQOPTIONS
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| 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 | |