Environmental Science: A Global ConcernEnvironmental Science: A Global Concern 11th Edition by William Cunningham, Mary Ann Cunningham

Exercise 24

Examine the red line of subduction that runs north along the eastern side of the Philippine plate and near Japan. This zone has the world's deepest ocean trench, the Marianas Trench, which was declared a marine preserve at the end of George W. Bush's presidency. Explain how a trench forms, and explain why volcanoes often occur near trenches. Based on your explanation, where in Alaska would you expect to find the most active volcanoes