Explain the wealth gap

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a. static group comparisonb. pretest-posttest control group designc. control-group-time-series designd. nonrandomized control-group pretest-posttest design

Which is the best location for farming? ( southwest asia ) a: east of the jordan river b: central syria c: southern israel d: the coast of lebanon

The authuor says that in some town hall meeting several thousand citizens might attend and vote . what would you do to make sure a town hall meeting of that many people would run smmothly