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We were running.... toward home when the wind hit, pelting our bare legs with gravel. We choked
and gasped...as the air thickened with brown dust....Just as we reached my front porch everything
went completely black. The porchlight was consumed by the blackness. We couldn't see each
other's faces. We couldn't see our own hands. I remember gasping, 'I can't breathe.'
-Pauline Robertson, Panhandle Pilgrimage, The Dust Bowl
Which factor was a primary reason for the event described in this excerpt?
O Cattle stampedes
O Improper housing
O Improved imigation
O Overproduction of land
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