Why Doesn't Quartz Have Any Cleavages, Only Fractures

question 68

Multiple Choice

Why doesn't quartz have any cleavages, only fractures?

• A) It is made of pure silicon which is very strong.
• B) All oxygens are shared between strongly bonded silicons in a 3- D framework.
• C) It has strong helical chains in three perpendicular directions.
• D) All of the metallic cations form strong webs between the silicate chains.

Understand the principles of persuasion and how they are applied in real-world scenarios.

Recognize techniques used in persuasion and their underlying psychological principles.

Understand the ethical implications and consequences of actions in emergency situations and persuasion scenarios.

Understand the concept of person perception and its key components.

---

Definitions:

Decreasing-cost Industry

An industry where costs per unit decline as the industry's output increases due to economies of scale.

LRAC Curve

The Long-Run Average Cost (LRAC) Curve represents the minimum average cost at which any output level can be produced in the long run when all inputs are variable.

Industry Supply

The total quantity of a good or service that is available for purchase in a given industry, at a given time and place.

Supply Schedule

Shows how much of a product firms will sell at alternative prices.