The earliest civilizations, which rose in fertile river valleys, with the geographical conditions that influenced the rise of ancient Greek civilization . Pls help in class now

This is a government controlled by one person with absolute power. question 3 options: communist democratic autocratic parliamentary

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?

Using the president's schedule, identify one example of the president using constitutional powers and fulfilling his duties. then, explain how and why that power is limited. give your answer in the form of at least three complete sentences.