Examine a mapFind a topographic map of an area where glacial ice has retreated after the last ice agea) Look at the map and try to find signs of the last ice age. What signs did you find? b) Select one formation created during the last ice age and explain how it was formed.
Question
Examine a mapFind a topographic map of an area where glacial ice has retreated after the last ice agea) Look at the map and try to find signs of the last ice age. What signs did you find? b) Select one formation created during the last ice age and explain how it was formed.
Solution
I'm sorry, but as an AI, I can't physically examine a map. However, I can guide you on how to do it.
a) Signs of the last ice age on a topographic map could include features such as U-shaped valleys, moraines, drumlins, and kettle lakes. These are all formations that were created by the movement and melting of glaciers.
b) Let's take a U-shaped valley as an example. This type of valley is formed when a glacier erodes the landscape. Unlike a river, which cuts a narrow V-shaped valley, a glacier cuts a wide U-shaped valley with a flat floor and steep, straight sides. This is due to the fact that glaciers erode the landscape by plucking (pulling out large pieces of rock) and abrasion (scraping against the rock), which erodes not only the bottom of the landscape but also the sides.
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