Which One of the Following Is a Pure Substance

question 81

Multiple Choice

Which one of the following is a pure substance?

• A)concrete
• B)wood
• C)salt water
• D)elemental copper
• E)milk

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Definitions:

Excludable

A characteristic of a good where it is possible to prevent people who have not paid for it from having access to it.

Rival

A term describing a good or resource that cannot be enjoyed by more than one individual or group without reducing its availability to others.

Private Good

A product or service that is excludable and rival in consumption, meaning its use is limited to paying customers and one individual's use diminishes another's ability to use it.

Cheeseburger

A cooked ground beef patty served between two slices of a bun, often with various toppings such as cheese, lettuce, and tomatoes.