The Conversion of Gaseous Nitrogen (N₂) to the Ammonium Ion

question 54

Multiple Choice

The conversion of gaseous nitrogen (N₂) to the ammonium ion (NH₄⁺) occurs during

• A)ammonification.
• B)nitrogen fixation.
• C)photosynthesis.
• D)nitrification.
• E)denitrification.

---

Definitions:

Ratio Level

A measurement scale that has a true zero point and equal intervals, allowing for the calculation of ratios.

Nominal Level

The simplest level of measurement, which involves categorizing or naming variables without implying any rank or order among them.

Dividing

The mathematical operation of allocating a quantity into equal parts, essentially determining how many times one number is contained within another.

Non-experimental

Pertains to studies or research designs where the investigator does not actively manipulate variables but observes them as they naturally occur.