Humans Add About 150,000,000 Tons of Fixed Nitrogen to the Biosphere

question 85

Multiple Choice

Humans add about 150,000,000 tons of fixed nitrogen to the biosphere each year, primarily:

• A)through the use of fertilizer.
• B)as nitrogen emissions from burning fossil fuels.
• C)through the nonagricultural use of ammonia.
• D)as nitrogen emissions from industry.
• E)None of the answer options is correct.

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Definitions:

Authority

The authority to command, decide, and ensure compliance.

Custom

A traditional and widely accepted way of behaving or doing something specific to a particular society, place, or time.

Apparent Authority

The appearance or assumption of authority given to an agent, employee, or representative by the actions or statements of the principal, leading third parties to believe the agent has such authority.

Actual Authority

The express and implied powers given to an agent by a principal, allowing the agent to act on behalf of the principal.