Which Metamorphic Reaction Takes Up Water to Make Hydrous Minerals

question 6

Multiple Choice

Which metamorphic reaction takes up water to make hydrous minerals?

• A) high temperature decomposition of muscovite to form K- feldspar and corundum
• B) low temperature alteration of olivine in basalt to form serpentine or talc
• C) high temperature decomposition of biotite and amphibole to make pyroxene
• D) contact metamorphism of clays like kaolinite to form sillimanite and corundum

---

Definitions:

Gear Teeth

The individual protrusions on the circumference of a gear that engage with those on another gear to transmit torque and motion.

Runout

A defect that causes side-to-side or lateral movement in a spinning object. In wheels it is commonly caused by imperfections in the wheel’s shape; in disc brakes it can be caused by a distorted rotor, hub flange distortion, or worn wheel bearings.

Electrons

Subatomic particles whose activity creates electric currents.

Current Flow

The movement of electric charge through a conductor, creating an electric circuit.