The dust bowl of the 1930s was caused by

earthquakes
erosion
fertilizer runoff
overgrazing
the clearing of grasslands
volcanic eruption

This diagram show the most important texts of.

Audrey planned to move from iowa to arizona. en route, she was offered a job in colorado, which she accepted. she now lives in denver, colorado, and works for an athletic apparel design company.

Quiero una redaccion de yo soy medico y que tenga 10 lineas