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Western University
Geography 2152F/G
Mark Moscicki

GEOG 2152G: Geography of Hazards Video: Mt. St. Helens – Back from the Dead 1. What was the first animal to be discovered in the area after the eruption? How was it able to survive? • Northern Pocket Gopher • Lives entirely beneath the ground, so when the blast occurred, it would have been safely protected beneath a mantel of soil 2. After the eruption, what did scientists notice was occurring in the centre of the crater?(only one im not sure if answer is what he wants) • Volcano is still steaming and rumbling, very hot • Constant background roar of rocks cascading down the crater walls • Plumes of steam and ash continue to shoot thousands of feet into the area, and crater floor is moving • Dome rising in the middle of the crater floor • Volcano is oozing a sticky gray lava, cooling as it reaches the surface • Over several months, dome grows larger 3. Describe the relationship between bacteria and the lupine plant. • In center of pumice plain, saw lupine that typically only grows high in the slopes of Mount St. Helens • How has plant managed to grow? Special root structure that provides its own fertilizer • Bacterium works with the plant and provides nitrogen to the plant. In return, the plant provides the bacterium with simple sugars that it fixes through photosynthesis • Means that lupine can grow in even the most inhospitable of terrain 4
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