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Questions and Answers
What is the primary way kettle lakes are formed?
What is the primary way kettle lakes are formed?
Which of the following benefits of glaciation contributed to the development of hydropower in Ontario?
Which of the following benefits of glaciation contributed to the development of hydropower in Ontario?
What makes the Oak Ridges Moraine significant?
What makes the Oak Ridges Moraine significant?
What important resource is left behind by glaciation that benefits farming?
What important resource is left behind by glaciation that benefits farming?
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How did glaciation impact transportation networks in Ontario?
How did glaciation impact transportation networks in Ontario?
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What is formed when two cirques erode towards each other?
What is formed when two cirques erode towards each other?
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Which geological feature is created as a glacier moves and picks up rocks?
Which geological feature is created as a glacier moves and picks up rocks?
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What describes the steep-sided ridges formed by ancient glacial rivers after a glacier retreats?
What describes the steep-sided ridges formed by ancient glacial rivers after a glacier retreats?
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Which of the following best describes what happens to the smaller tributary valleys created by cirques after glaciers retreat?
Which of the following best describes what happens to the smaller tributary valleys created by cirques after glaciers retreat?
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What term refers to the clay, sand, and gravel deposited by an ice sheet?
What term refers to the clay, sand, and gravel deposited by an ice sheet?
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What major body of water was deepened by the advancing ice sheets during the last ice age?
What major body of water was deepened by the advancing ice sheets during the last ice age?
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Which feature is characterized by oval-shaped hills made of glacial till?
Which feature is characterized by oval-shaped hills made of glacial till?
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What kind of valleys are created when the sea floods U-shaped glacial valleys along the coastline?
What kind of valleys are created when the sea floods U-shaped glacial valleys along the coastline?
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Study Notes
Effects of Glaciation
- Alpine glaciers originate in mountainous regions, like the Rockies.
- Snow accumulates in mountain basins called cirques.
- Snow compacts into ice and flows downhill due to gravity forming a glacier.
- Glaciers erode the surrounding rock by picking up rocks and moving them.
- The ice deepens cirques.
- When two cirques meet, they form arêtes, knife-edge ridges.
- Multiple cirques create pyramidal peaks called horns.
- Glaciers carve U-shaped valleys.
- Tributary valleys are often left as hanging valleys.
- Glacial meltwater creates long, narrow inlets called fjords.
Continental Glaciation
- Continental glaciers shape landscapes.
- They deepen valleys and create lakes.
- Glaciers erode vast amounts of soil, sand, gravel, and rock.
- Glacial till (clay, sand, gravel) is deposited by ice sheets.
- Moraines are ridges or piles of till (deposited by ice sheets).
- Glacial rivers flow beneath the ice sheet, depositing sand and gravel in features like eskers.
- Eskers are steep-sided ridges.
- Drumlins are oval-shaped hills of glacial till.
- Kettle lakes form when chunks of ice melt within till deposits.
Benefits of Glaciation in Ontario
- Glaciers carved the Great Lakes, useful for transportation, agriculture, and industry.
- Flattened landscapes are good for farming and cities.
- Glaciers carved valleys and lakes, creating destinations.
- Glaciers create deep soil.
- Glaciers leave deposits of sand and gravel, useful for construction.
- The Oakridges Moraine is a protected area with diverse wildlife, recreational activities, and clean water.
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Description
This quiz explores the effects of glaciation on landscapes, focusing on both alpine and continental glaciers. Learn about processes such as erosion, the formation of unique landforms like arêtes and fjords, and the impacts of glacial meltwater. Test your knowledge on how glaciers shape our environment!