Which two statements about composite materials are true? A. they're made up of more than one substance
B. they have the same or similar properties as the materials used to make them
C. they're always made of metal
D. they're readily available in nature ​

Which of the following statements about brain development and early childhood is true? the brain of a 5 year old is 60 percent the size of an adult brain the overall size of the brain does not increase dramatically from ages 3-15 by the time a child is 3 years of age, the brain is 25 percent of it's adult size the development that occurs inside the brain ends at the onset of adolescence