Question

what is an abiotic factor that would be critical to the survival of anaerobic bacteria living near deep - sea hydrothermal vents?
algae
oxygen
shrimp
sulfur

Explanation:

Abiotic factors are non - living components. Algae and shrimp are biotic (living). Anaerobic bacteria do not need oxygen. Sulfur is an abiotic factor and is used by some anaerobic bacteria near hydrothermal vents for metabolic processes (e.g., chemosynthesis).

Answer:

sulfur