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Which is a harmful role of bacteria?
making antibiotics
producing oxygen
decomposing waste
causing tooth decay
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User Shoebie
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1 Answer

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Final answer:

The harmful role of bacteria is causing tooth decay.


Step-by-step explanation:

The harmful role of bacteria mentioned in the options is causing tooth decay. While bacteria have various beneficial roles in the environment, such as producing oxygen and decomposing waste, some specific bacteria species can cause dental plaque formation, leading to tooth decay.


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User Fhtuft
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