Answer:
as he goes through puberty, there larynx gets bigger and the vocal cords lengthen and thicken, so his voice gets deeper. And his voice may crack or break
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Answer:
a) underextension.
Explanation:
Psychologically, underextension can be defined as a classification term used in language to account and relate one object or an entity as opposed to all objects or all entity that is linked to that class. This phenomena is rampant in children when beginning to acquire and reinforce a new language.
In the case of Baby Billy, Baby Billy calls his favorite blanket a "blankie.", he has already learns the word(blanket) for something else callled (blankie), without extending it to other things in the same category because when he sees other blankets in the house, he does not refer to them as a "blankie".
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