Babies who are deaf babble less than babies who can hear true or falxe

Babbling is normal among hearing 8 month olds. But in looking at 16 infants with profound hearing loss and 27 infants with typical hearing, the researchers at the University of Missouri found that babies with profound hearing loss rarely make the repetitive vowel sounds, “da-da”, “ma-ma” and “ga-ga”, for example, that are common among babies without hearing loss.
so your answer is true 
hope it helps 

Yes you do , which is cool

They need to know because sometimes they have a symptom