Podcast
Questions and Answers
What causes the water vapor to condense and fall as snow over mountain ranges?
What causes the water vapor to condense and fall as snow over mountain ranges?
- Interaction with the mountain minerals
- Cooling of the air as it is pushed up over the mountain ranges (correct)
- Increased pressure at higher altitudes
- Change in the Earth's magnetic field
What is the defining characteristic of a glacier?
What is the defining characteristic of a glacier?
- It is a permanent mass of snow and ice which flows (correct)
- It is a result of volcanic activity
- It is a temporary accumulation of ice and snow
- It is solely made up of crystallized water vapor
What distinguishes a piedmont glacier from a valley glacier?
What distinguishes a piedmont glacier from a valley glacier?
- A piedmont glacier spills out onto adjacent flat land (correct)
- A valley glacier forms in amphitheater-like bowls
- A valley glacier is confined to basins it forms in
- A piedmont glacier originates as one or more cirque glaciers
What characterizes unconfined glaciers?
What characterizes unconfined glaciers?
What type of glacier originates as one or more cirque glaciers, then flows down valley as it accumulates mass, grows, and joins others?
What type of glacier originates as one or more cirque glaciers, then flows down valley as it accumulates mass, grows, and joins others?
What is the defining characteristic of a cirque glacier?
What is the defining characteristic of a cirque glacier?
What distinguishes a piedmont glacier from an ice sheet?
What distinguishes a piedmont glacier from an ice sheet?
What causes the water vapor to condense and fall as snow over mountain ranges?
What causes the water vapor to condense and fall as snow over mountain ranges?
What characterizes unconfined glaciers?
What characterizes unconfined glaciers?
How does a glacier deform under its own weight if it is thick enough or on a steep slope?
How does a glacier deform under its own weight if it is thick enough or on a steep slope?
Study Notes
Glacier Formation and Characteristics
- Water vapor condenses and falls as snow over mountain ranges due to the orographic effect, where air is forced to rise, cool, and condense, resulting in precipitation.
Types of Glaciers
- A glacier is defined by its continuous flow and deformation under its own weight.
- Valley glaciers are confined to a specific valley or mountain range.
- Piedmont glaciers are formed when a valley glacier flows out of a mountain range and onto a plain, where it spreads out and becomes wider.
- Unconfined glaciers are not limited by surrounding terrain and can flow freely in any direction.
- Alpine glaciers originate as one or more cirque glaciers, then flow down the valley as they accumulate mass, grow, and join others.
- Cirque glaciers are formed in a cirque, a natural amphitheater-shaped valley, and are characterized by their small, circular shape.
- Piedmont glaciers can be distinguished from ice sheets by their smaller size and more irregular shape.
- Ice sheets are large, continuous sheets of ice that cover a vast area of land.
- Glaciers deform under their own weight if they are thick enough or on a steep slope, causing the ice to creep and flow.
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Description
Discover the process of glacier formation and movement through this informative quiz. Learn about the role of glaciers in the water cycle, the accumulation of snow, and the transformation into ice over time.
