Brainliest for anyone that can name the 8 climate regions

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?

Earlier studies were more slanted toward a. the upper class. c. caucasian males. b. teenagers in school. d. caucasian females. select the best answer from the choices provided a b c d

In 1917 ww1 started to happen, and america tried to stay neutral but couldn't. what are the two main reasons america didn't stay neutral during ww1