What environmental problem presents a major challenge for Iowans today?
(1 point)
Responses
Droughts prevent new glaciers from forming.
Droughts prevent new glaciers from forming.
Soil erosion hurts cropland and increases water pollution.
Soil erosion hurts cropland and increases water pollution.
Sod quality is too poor for Iowans to construct lasting buildings.
Sod quality is too poor for Iowans to construct lasting buildings.
Flood waters spill over the Mississippi River banks each year.