When was the first Earth Day celebrated?
2. What was the world’s first established national park? 3. How long can it take for plastic to break down in a landfill? 4. What percentage of the world’s population is without safe drinking water? 5. One bus carries as many people as how many cars? 6. Where was Greenpeace founded? 7. Where was the first wildlife refuge formed? 8. Earth Day shares a date with what other holiday? 9. Of all the water on Earth, what percentage is fresh water? 10. How many trees are saved for every ton of paper recycled? Robyn’s answers 1. I think it’s been about 30 years, so I’ll say 1978. 2. I’m going with Yellowstone. 3. Oh my gosh, I know this. 500 years. 4. Half? That seems kind of high. 5. 50. 6. Canada. 7. Somewhere in the U.S. Do you mean more specific than that? 8. Oh, um, I don’t know. 9. It’s a small amount, like 10 percent 10. I’m going to have to guess on this one. Is it 100? Colin’s answers 1. In the ’70s. 2. The one starting with a Y. Wait, aren’t there two? 3. A long time. 4. 25 percent 5.