Most Atmospheric Free Nitrogen Is Cycled to Earth by Means

question 19

Multiple Choice

Most atmospheric free nitrogen is cycled to Earth by means of _____ .

• A) rain
• B) assimilation
• C) weathering
• D) mining
• E) none of the above

---

Definitions:

Roofs

The plural form of roof, referring to the structures forming the upper covering of a building or vehicle to provide protection from the weather.

Spelled Correctly

Refers to the act of writing a word with the proper arrangement of letters according to standardized spelling conventions.

Airports

Facilities that accommodate the takeoff and landing of airplanes, including passenger services and cargo handling.

Spelled Correctly

Indicates that words have been written with the proper arrangement of letters according to language standards or dictionary definitions.