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What Connects Bones, Bird Poop, and Toxic Green Slime? Hint: Without It, Half of Us Wouldn't Be Alive Today

Gastropod

CHAPTER

The Lorax

Congress passed the Clean Water Act in 1972. Some states banned phosphorus from laundry detergent, especially those around the Great Lakes. Originally, phosphorus may have been seen as a water softener, but it does actually contribute to cleaning clothes and dishes. State bonds with iron, which means it helps remove soil.

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