In what environments can bacteria be found?

The bacterium can be found in all environments of life. A large number of bacteria that form silt deposits inhabiting the bottom surface, algae, and marine life live in the aquatic environment. The ground-air environment is especially rich in bacterial spores. The soil environment is filled with many nitrogen-fixing, iron bacteria. Organism is the most studied. It is rich in both beneficial and pathogenic bacteria that colonize the mucous membranes of animals and humans.