Little andrea has just learned that robins are birds. she now sees a sparrow, points to it, and calls out "Bird!" According to jean piagets, Andrea is showing the cognitive process of​

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.