Quiz: What is the primary cause of the formation of Crater Lake? April 29, 2025 by Gideon Lakewood What is the primary cause of the formation of Crater Lake? Discover more about Crater Lake Tours at our home page. A) A volcanic eruption that created a caldera B) Glacial erosion that carved out the basin C) A meteorite impact that formed a crater D) Tectonic activity that caused a sinkhole Submit Answer
