Which statement correctly describes how nitrogen in the soil returns to the atmosphere? options: Soil bacteria converts usable nitrogen into nitrogen gas. Plants convert usable nitrogen into nitrogen gas. Nitrogen-fixing bacteria in plant roots convert usable nitrogen into nitrogen gas. Lightning strikes the soil converting the nitrogen in the soil into nitrogen gas.
Biologically: Nitrogen gas (N2) diffuses into the soil from the atmosphere, and species of bacteria convert this nitrogen to ammonium ions (NH4+), which can be used by plants