What were the major volcanoes in Northwest of America.

It’s about research paper and presentation on power point about 8 slides. The report should primarily focus on library literature such as Scientific journals or government publications rather than internet material. Topic: The Volcanoes in Northwest of America. 1. What were the majors’ volcanoes there? 2. How did these volcanoes start? When that happened? 3. What were the effects of […]