What was a main advantage of the three-field system?
Crops matured at different times.
New types of crops could be grown.
Extra food reduced the chance of famine,
Multiple harvests became commonplace.

Francisco loves to learn, but his lack of english makes him feel “nervous and scared.” why is he both happy and scared of school

Griffin correctly concludes that the coordinate pair for the russian federation is an influential point, because removing the russian federation from the relationship will significantly change the trend of the regression line. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated coefficient of determination of the regression line. is not an influential point, because the russian federation does not have the highest cvdir of all 1111 nations in the scatterplot. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated slope of the regression line. is not an influential point, because the russian federation has a positive residual in the least-squares linear regression.

Social darwinism applies what theory to human society