Answer:
2.) the development of railroads affected the country because historians aruge over the fact whether railroads determened the pace of economic development in nineteenth-centry America
Explanation:
or
1) The first industrial revolution increased use of coal,and developed steam power
the second revolution introduced electric power ,automatic symbols and structural steel for building or construction
Answer:
Stages of development:
former operational stage
Explanation:
In Piaget's theory, the stage of cognitive development which starts from about age 12 during which people begin to think logically about abstract concepts. stages of development can be said to be the different phases of the ways of continuity and change in human capabilities that is eminent throughout life, involving both growth and decline.
Jean Piaget lived between 1896–1980. He a theorist who studied childhood development.He stated that thinking is a core area of development and that children are naturally inquisitive. He gave different areas of development ranging from different ages. in the formal operational stage,Children utilizes abstract reasoning and thinking. it is ranges from the 12 years upward who has potential for mature moral reasoning.
Answer:
This is true, opportunity cost does mean how much you have to spend to do something