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Earth911 Quiz #55: Environmentally Smart Shopping

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Quiz #87: Food Carbon Footprint Challenge

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Earth911 Quiz #48: Ocean Plastics Solutions

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Quiz #86: Composting Challenge

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Earth911 Quiz #46: Extreme Weather & Wildfire Everywhere

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Earth911 Quiz #50: The Circular Life of LED Bulbs

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Earth911 Quiz #66: The Social Cost of Carbon

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Earth911 Quiz #85: Amazing Facts About Earth and Nature

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Earth911 Quiz #54: Are You a Mobile Phone Recycling Expert?

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The Earth911.com Quiz #10: Tackling E-waste in the Home and Office

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Earth911 Quiz #53: Recycle Motor Oil the Right Way

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Earth911 Quiz #47: Battery Recycling Challenge

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Earth911 Quiz #64: Wildfire Preparation Challenge

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Earth911 Quiz #21: CO2 Emissions Fact Challenge

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Earth911.com Quiz #15: Shopping for Sustainability

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Earth911 Quiz #27: Are You a Recycling Hero?

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Earth911 Quiz #76: Where Does Your Garbage Go?

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Earth911 Quiz #41: Where Did All the Ice Go?

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Earth911 Quiz #84: Earth Day Goals for 2030

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Earth911 Quiz #57: Earth Day’s Past

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Earth911 Quiz #83: Five Sustainability Changes

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