The Fundamental Unit of the Silicon-Oxygen Minerals Is in the Shape

question 159

Multiple Choice

The fundamental unit of the silicon-oxygen minerals is in the shape of a

• A) cone.
• B) tetrahedron.
• C) cube.
• D) sphere.

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Definitions:

Great Serpent Mound

A prehistoric effigy mound in Ohio, USA, which depicts a giant serpent, often interpreted as an astronomical or religious symbol.

Halley's Comet

A short-period comet visible from Earth every 75-76 years, known for its spectacular sightings throughout human history.

Corbeled-vaulted Construction

A building technique where stones are laid overlapping each other slightly inward until they meet at the top, creating a self-supporting arch or dome.

Maya

A Mesoamerican civilization known for its advanced writing, architecture, mathematics, and astronomical system.