Answer:
Piaget's theory
Explanation:
Jean Piaget has developed the theory of cognitive development in which he has mentioned four different stages including the sensorimotor stage, preoperational stage, formal operational stage, and concrete operational stage.
Jean Piaget's theory is based on the ideology that a child can actively construct different knowledge as he or she manipulates and explores the world around him or her. His theory explains a framework for the understanding of the development of thinking and cognition process. He explained the process through which a child interacts with his or her environment by using senses.
Answer: A social unit; environment.
Explanation:
The social relationship relating all who support Kelvin is seen as a social unit, Kelvin's team brought them together and this relates them socially, this makes up the environment too.
Although the 1800s in the United States seems like it was limited in opportunity by today's standards, it was much easier to make a living during this time in US than it was in China.
Answer:
They formed a federalist government but I'm not quite sure due to how the question is worded. I'd go with democratic.
Explanation:
https://en.wikipedia.org/wiki/History_of_Australia_(1901%E2%80%9345) check out this site it might help you.