Question

Nitrogen moves from the lithosphere (geosphere) to the atmosphere through:

A. Bioavailability
B. Nitrogen fixation
C. Carbon sequestration
D. Denitrifieation

Answer 1

Nitrogen moves from the lithosphere to the atmosphere through denitrification, which is conducted by bacteria as part of the nitrogen cycle.

Step-by-step explanation:

Nitrogen moves from the lithosphere (geosphere) to the atmosphere through a process known as denitrification. This process is conducted by certain species of bacteria that convert nitrates (NO3) into nitrogen gas (N₂), thus returning nitrogen to the atmosphere. Denitrification is an essential part of the nitrogen cycle, which is a vital cycle for life on Earth, as it ensures the flow and recycling of nitrogen through the ecosystem.