What document officially changed the 13 colonies into the 13 United States of America?

Explain the diversity of race in latin america

Which of the following is true of emotions? (a) a neurologically-intact baby can show at least six distinct emotions at birth. (b) the character of emotions changes as we develop cognitively. (c) basic emotions are culturally- and developmentally-based. (d) in general, adults cannot interpret infant emotions until the infants are 10 to 12 months old.

The american public was excited by the invention of the railroad system. true false