Identify the technique of separating mixtures. P for Picking W for Winnowing and S for sedimentation

:calculate the sum of the interior angles of a 13-sided polygon.

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.

Russia is to the east if germany ? true or false