What are the three major river systems in Pennsylvania?

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Yes, this is homework. But I'm supposed to look it up and can't find it.

2006-09-14 12:38:56 · 3 answers · asked by ajc 2 in Education & Reference ➔ Homework Help

Allegheny, Ohio and Monongahela rivers.

2006-09-14 12:43:35 · answer #1 · answered by ????? 7 · 0⤊ 0⤋

Briscoe, Dry Gulch, & Powhatan rivers

2006-09-14 19:48:40 · answer #2 · answered by bereftcat 4 · 0⤊ 0⤋

look up Pittsburgh

2006-09-14 19:44:09 · answer #3 · answered by jurydoc 7 · 0⤊ 0⤋