True or false concentrating on a large number of goods and activities is called specialization

Ineed your opinion for the question of what is your thoughts on the use of medical marijuana? (social experiment)

What political traditions and tensions first appeared in the early years of the new republic? essay

What was piaget's explanation as to why preschool-age children in the preoperational stage make errors on tasks requiring conservation? a) preschool children's tendency toward centration prevents them from focusing on other relevant features of a situation b) preschool children have not yet developed numerical understanding; therefore, different amounts are meaningless c) preschool children's neural-visual network is not fully matured d) preschool children have not lived long enough and accrued enough experience to know the difference between quantities