My teacher asked me the answer to a very difficult problem. find parts of speech

Telling your brain to slow down and focusing on details are crucial activities in which positive study habit?

Laws that cover individuals who are injured by a product

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?