How much does the child need to be exposed to language use correctly?

According to a lot of research, the rule of thumb is that children must get around 30% wake time of their language exposure.

According to a lot of research, the rule of thumb is that children must get around 30% wake time of their language exposure to become proficient in the language. Sounds about right when you first think of it. Bilingual children don't often have 50/50 exposure to both languages

i guess the cause and effect would show how being around the smoke(the cause) can have negative effects on the body.

explanation:

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