Together, Oxygen and Nitrogen Comprise What Percentage of the Atmosphere

question 147

Multiple Choice

Together, oxygen and nitrogen comprise what percentage of the atmosphere?

• A) less than 1%
• B) less than 10%
• C) about 25%
• D) about 75%
• E) more than 95%

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Definitions:

Implicit Costs

Costs that represent the opportunity cost of using resources that are not directly paid for, such as the owner’s time or the use of assets owned by the firm.

Explicit Costs

Direct, out-of-pocket payments for resources or services used in the production process.

Accounting Profits

Represents the difference between total revenue and explicit costs of a firm.

Economic Profit

The difference between the revenue received from the sale of an output and the opportunity cost of the inputs used, often considered in terms of exceeding the company's normal profit level.