A river, such as the one in the diagram, receives pollution from all the different sources shown. The types of pollutants and the amounts that enter the river will be different, but all the sources contribute to pollution of this freshwater. An illustration of a river running through the middle of an area with sources of pollution on the left and right of the river. On the left of the river in order from back to front: wastewater treatment plants, rural homes, suburban development, croplands On the right of the river in order from back to front: urban streets, factories, animal feedlot

Josie lives in the suburban development shown in the diagram. Identify three sources of pollution that affect the river by the development. Then, compare the types of pollution likely to be produced by the croplands and the animal feedlot.