Examlex
Place the following gases in order of increasing density at STP.
N2 NH3 N2O4 Ar
Babbling
A stage in child language acquisition where infants produce sounds before they learn to speak actual words, often combining consonants and vowels like "baba" or "gaga".
Cooing
The early vocalization of infants that consists of soft, throaty noises, often made in response to social interaction.
Intonation
The variation of pitch while speaking, which can affect the meaning of words and convey emotion or emphasis.
First Word
The initial stage of verbal expression in infants, marking the beginning of spoken language acquisition.
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