Read the National Park Service’s Fire Ecology article. Watch the NBC Learn video: Yellowstone Recovers but Faces New Threats 20 Years After Major Fire. Based on what you have learned from completing the Surtsey Island investigation, along with this article and video, answer the following questions:
•What is ecological succession?
•How do the Surtsey example and the Yellowstone example differ?
•How are fires helpful and harmful?
•What should be done to minimize current day threats to Yellowstone?

Additional Requirements 
Level of Detail: Only answer needed