Are children and youth in the international world less fit today than children 30 years ago?

Abill in the texas legislature that would allow a county to establish a new community college would be classified as a

Restricting immigrants from entering a country may be based on what belief?  

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?