A Difficulty in Presenting Evidence for a Sixth Mass Extinction

question 47

Multiple Choice

A difficulty in presenting evidence for a sixth mass extinction is

• A)that tropical rain forests harbor many unknown species.
• B)that species numbers are declining because of habitat loss.
• C)introduction of new species.
• D)increased global temperatures.

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Definitions:

Short-Run

A period in economics where at least one factor of production is fixed, and firms can't alter all inputs.

Long-Run

A period in economic theory during which all factors of production and costs are variable, allowing for full adjustment to changes.

Economic Profit

The gap between the total earnings of a business and all its costs, encompassing out-of-pocket and opportunity costs.

Perfect Competitor

A Perfect Competitor refers to a hypothetical firm in a perfectly competitive market that cannot influence the market price and must accept it as given.