What annual celebration started as an environmental teach-in and is observed on the birthday of Vladimir Lenin and Julius Morton, the founder of Arbor
{"Image DocumentName": "What annual celebration started as an environmental teach-in and is observed on the birthday of Vladimir Lenin and Julius Morton, the founder of Arbor Day?", "Image ImageDescription": "ANSWER: Earth Day.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}