Mesopotamian Metalworkers Discovered That If They Alloyed Copper and Tin

question 20

Multiple Choice

Mesopotamian metalworkers discovered that if they alloyed copper and tin they could produce

• A) obsidian.
• B) steel.
• C) iron.
• D) silver.
• E) bronze.

---

Definitions:

Spontaneous Recovery

A phenomenon in classical conditioning where a previously extinguished response re-emerges after a period of non-exposure to the conditioned stimulus.

Psychodynamic

A psychological perspective that emphasizes the influence of the unconscious mind on behavior.

Humanistic

Relating to or supporting the principles of humanism, emphasizing the value and agency of human beings, individually and collectively.

Biological

Pertaining to the science of life or living organisms, focusing on their structure, function, growth, origin, evolution, and distribution.