Làm sao để thực hiện tiến bộ và công bằng xã hội

2. what was the estimated population of ancient copán? of ancient tikal?

If the ussrs economy has remained agricultural-based rather than industrial, then a. the unemployment rate among men would have been much lower b. women would have been less in demand in the workforce c. crop productivity would have led to larger , better nourished populations d. children would not have had to leave school early to work in factories

Which is one of the defining characteristic of the modern era