Why do underdeveloped countries have higher adolescent fertility rate?

Name three things the framers of the constitution did to keep the federal government or any part of it from becoming too powerful.

What was the focus of debate about the war at the second

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?