Why Does Plutonium Not Occur in Appreciable Amounts in Natural

question 22

Multiple Choice

Why does plutonium not occur in appreciable amounts in natural ore deposits?

• A)Most naturally occurring plutonium deposits have already been depleted in the creation of nuclear weapons.
• B)Plutonium is strictly a human-made element.
• C)Any plutonium initially in the earth's crust has long since decayed.
• D)Plutonium loses electrons to form positively charged particles that have long since washed into the oceans.

---

Definitions:

Aaron Beck

An influential American psychiatrist known for developing cognitive therapy, particularly for depression.

Cognitive Symptom

Manifestations of conditions that affect cognitive processes, often influencing learning, memory, perception, and problem-solving abilities.

Depression

A disorder of the psyche characterized by ongoing gloominess or a lack of zest for activities, which majorly disrupts normal life activities.

Artifact Theory

A theory that suggests differences observed in certain groups (e.g., in intelligence tests between cultures) are not due to actual differences in abilities but rather to the artifacts of the testing process itself.