Which of the Following Is NOT True About Minerals

question 23

Multiple Choice

Which of the following is NOT true about minerals?

• A) All minerals are compounds of more than one element.
• B) All minerals are naturally made.
• C) Some minerals are precipitated by organisms.
• D) All minerals can be expressed as chemical formulas.

---

Definitions:

Ischemia

Restriction of blood flow to tissue or organs; often used with reference to the heart.

Embolism

The sudden blockage of a blood vessel by an embolus, typically a blood clot, leading to potentially life-threatening conditions.

Myocardial Infarctions

A medical term used for a heart attack, which occurs when blood flow to a part of the heart is blocked for a long enough time that part of the heart muscle is damaged or dies.

Heart Attacks

A medical emergency where the blood flow to the heart is suddenly blocked, usually by a blood clot, leading to the damage of heart muscle.