The Conversion (Fixation)of N₂ to Its Compounds Is Accomplished by a Number

question 29

Multiple Choice

The conversion (fixation) of N₂ to its compounds is accomplished by a number of natural and artificial processes.Which of the following account for around 50% (the highest amount) of worldwide conversion of nitrogen to its compounds?

• A) burning fossil fuels
• B) lightening
• C) biological processes
• D) fertilizer production
• E) volcanic eruptions

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Definitions:

Standard Machine-Hours

The estimated number of hours that a machine is expected to operate to complete a specific task under standard conditions.

Manufacturing Overhead

All manufacturing costs not directly associated with the production of goods, including costs related to indirect labor, indirect materials, and other indirect expenses.

Standard Maintenance Cost

The anticipated cost of regular upkeep and maintenance of equipment or property, based on historical data or industry standards.

Machine-Hours

A measure of the amount of time machines are used in the production process, often used as an allocation base for assigning overhead costs.