83.7k views
3 votes
Which is a role of helpful bacteria?

A)removing nutrients from soil
B)Producing oxygen
C)healing sick animals
D)preventing tooth decay

User Cliff Hall
by
8.5k points

2 Answers

4 votes
D) preventing tooth decay
User DCSeven
by
8.0k points
3 votes

Answer:

its producing oxygen

Step-by-step explanation:

User Kumar Elubandi
by
8.9k points
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