Which Is the Least Effective Way to Extend the Use

question 21

Multiple Choice

Which is the least effective way to extend the use of nonrenewable resources?

• A) reducing direct consumption of the resource
• B) reusing the same form of a particular resource many times
• C) recycling a resource into new products
• D) reducing the efficiency of resource use
• E) finding substitutes for a resource

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Definitions:

Universal Generalization

A logical principle stating that what is true of each member of a class or group is true of the class as a whole.

Existential Generalization

A logical operation that infers the existence of at least one member of a domain that satisfies a given predicate.

Existential Instantiation

A logical principle stating that the existence of at least one instance of a variable within a domain can be concluded from a statement asserting something about that variable.

Universal Instantiation

A logical rule used in deductive reasoning stating that what is true of all members of a class is true of any specific member.