Which two bodies of water are the most important for shipping in the middle east, especially for the transport of oil?
a.
the tigris and euphrates rivers
b.
the mediterranean sea and the atlantic ocean
c.
the suez canal and the persian gulf
d.
the pacific ocean and the red sea

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