Which mountain range crosses the eastern part of the United States?

the Cascade Range
the Sierra Nevada
the Rockies
the Appalachian Mountains

Explain how the poverty level is determined. on edinuity* the possible answer may the poverty level is defined by the u.s. bureau of the census and it is determined by calculating the cost of providing an adequate diet. this number is then multiplied by three because research has indicated that poor people spend a third of their income on food.