Which of these environmental effect of building dams?
a: decreased water temperature upstream
b: increased land fertility downstream
c: weed growth downstream
d: soil erosion upstream

if you could me.
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Which statement best completes the diagram of the ways the different branches of government can limit each other's powers?

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

This was an act of continental congress which initially organized the first united states territory and was to be the basis for governing how the united states would expand westward.