Which of the following depend on bacteria

answer:

bacteria play important roles in the global ecosystem.

the ecosystem, both on land and in the water, depends heavily upon the activity of bacteria. the cycling of nutrients such as carbon, nitrogen, and sulfur is completed by their ceaseless labor.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).