Why do teeth erode?

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thehammer

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Joined
Mar 20, 2023
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Student or Learner
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Hindi
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India
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Hello, could you please tell me should I use active voice or passive voice with erode?

1- Why do teeth erode?
2- Why are teeth eroded?
3- Why do teeth get eroded?

By the way, can I say 'Why do teeth become eroded?' I think I can't. I know 'get' passive possible. But sometimes I have seen that 'become' being used with verbs' participle forms, which are adjectives in that case.
 
You can use "erode" in either active voice or passive voice. Also, "Why do teeth become eroded?" is perfectly fine.
 
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