Which Minerals That Make Up the Mohs Scale Are Softer

question 47

Multiple Choice

Which minerals that make up the Mohs scale are softer than your fingernail?

• A) beryl, garnet, tourmaline
• B) feldspar, quartz, topaz, corundum, diamond
• C) gypsum and talc
• D) calcite, fluorite, apatite

---

Definitions:

Drinking Water

Water that is safe for human consumption, free from contaminants and pathogens.

Alien Species

Nonnative species that migrate or are introduced by humans into a new ecosystem; also called exotic species.

Exotic Species

Non-native species introduced to an area where they do not naturally occur, often leading to ecological imbalance.

Accidental Transport

The unintentional movement of organisms or materials from one location to another, often facilitated by human activity.