MCQOPTIONS
Saved Bookmarks
| 1. |
What is a right order of hardness? |
| A. | Talc < Quartz < Fluorite |
| B. | Calcite < Apatite < Topaz |
| C. | Diamond < Topaz < Talc |
| D. | Gypsum < Topaz < Quartz |
| Answer» C. Diamond < Topaz < Talc | |