Which Mineral Is a Hard and Brittle Silica That Shows

question 168

Multiple Choice

Which mineral is a hard and brittle silica that shows conchoidal fracture?

• A) Feldspar
• B) Quartz
• C) Calcite
• D) Mica

---

Definitions:

Normal Saline

A sterile solution of sodium chloride in water, commonly used in medical settings for a variety of purposes, including hydration and wound cleaning.

Metabolic Acidosis

A disturbance in the body's acid-base balance resulting in a lower than normal blood pH due to increased acid or decreased bicarbonate.

Cheyne-Stokes

A pattern of breathing characterized by progressively deeper and sometimes faster breathing, followed by a gradual decrease that results in a temporary stop in breathing, commonly seen in heart failure and brain injuries.

Kussmaul's

Refers to Kussmaul breathing, a type of hyperventilation characterized by deep and labored breathing, often seen in cases of severe metabolic acidosis.