General Structure and Writing Style. The function of a research design is to ensure that the evidence obtained enables you to effectively address the research problem logically and as unambiguously as possible.
ALLEGHENY RIVER HISTORY. Location: A river rising in north-central Pennsylvania and flowing about 523 km (325 mi) northwest into New York then southwest into Pennsylvania again, where it joins the Monongahela River at Pittsburgh to form the Ohio River.
percentage of rivers on the planet flows in a southerly direction because the source (usually in the mountains) is to the north of the mouth. If the source of a river is at a higher elevation than the mouth, that river will run from the source to the mouth. However, if that (higher) source is to the south of the mouth, that river will then flow to the north (downhill). Below is a partial list of rivers (length listed when known) that do just that. We haven't listed rivers that run to the northwest, or rivers that don't meet the exact requirements.