Question

10 multiple choice 2 points which biogeochemcial cycle involves bacteria in order to get it from the atmosphere into the soil? sulfur cycle nitrogen cycle carbon cycle water cycle

Explanation:

Nitrogen - fixing bacteria convert atmospheric nitrogen ($N_2$) into ammonia ($NH_3$) which enters the soil. This is a key part of the nitrogen cycle. Sulfur cycle mainly involves sulfur compounds in different forms (e.g., $H_2S$, $SO_4^{2 - }$) and their transformations. Carbon cycle has processes like photosynthesis (plants taking in $CO_2$) and respiration. Water cycle is about the movement of water (evaporation, condensation, precipitation).

Answer:

Nitrogen cycle