What Is Fica And How Is It Different From Snow And Glacial Ice

Friday January 14, 2022

What is fica and how is it different from snow and glacial ice? Type response here: 2. Glacial Ice is a solid. How does it flow without melting? Type response here: 3. Why do the deepest layers of the glacier flow but the ice at the top of the glacier breaks and cracks? (2 points) Type response here: Ice and Sea Level In the experiment below, two containers are set up to model two kinds of Ice – land Ice and sea ice. The top image shows the experimental set up. For the sea ice, Ice cubes are placed in the water. For the land ice, ice cubes are placed on the play dough above the water. The water level is marked with a line and the ice is left to melt. The results of the experiment are shown in the bottom image. Land Ice Sea Ice SEA LANO Figure 2 Sea ice and land ice experiment for questions 6 and 7 4. Does melting sea ice in the Arctic raise sea level? Why or why not? Type response here: 5. Does melting the ice sheet on Greenland raise sea level? Why or why not? Type response here: Sculpting Valleys 6. Which one of these valleys was carved by a glacier? How do you know? Type response here: 7. Which one of these valleys was carved by a river? How do you know? Type response here: ? B Land of 10,000 Lakes 8. Is weathering by glaciers mechanical or chemical weathering? Type response here: Glaciers erode the landscape when they are actively growing in the accumulation zone where ice is added to the glacier. As the ice moves, it scrapes along the bedrock, gouging out the softer weaker rocks between the harder layers. When the glacier is gone, these scratches in the rock fill with water to form lakes. Figure 3 fakes formed by glacial erosion Glaciers deposit sediment where they lose mass in the ablation zone where Ice is lost from the glacier. Sediment is pushed out of the end of a glacier where it creates piles of loose material. As the ice retreats, blocks of ice are broken off and left behind, burled in the sediment. When the Ice finally melts, it leaves behind a depression that can fill with water and form a lake. These are called kettle lakes. Ice Ice Water Block of ice dropped by Ice block becomes Ice block melts a glacier surrounded by sediment Figure 4 Kettle lakes formed by glacial deposition 9. Examine the map below of the lakes of northern Minnesota. Figure 5 Northern Minnesota Lakes a. Examine the shapes of the lakes in northern Minnesota. Are they round like circles or long and thin? Type response here: b. Were the lakes of northern Minnesota formed by erosion or deposition? Type response here: c. Was this part of Minnesota in the zone of ice loss or ice growth? Type response here:


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