About __% of Earth's freshwater is tied up as ice.
Answer: 77
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Physical Geography and the Environment
- _________ is incoming solar radiation intercepted by the Earth.
- _____ energy is from the sun.
- ______ energy is the ultimate source of energy for most life processes in the biosphere.
- There are a lot of _______ in Greenland.
- 14,000 years ago the ____________ were covered by an ice sheet.
- The ____________ is the largest cluster of freshwater lakes and were carved by glaciers.
- A(n) ____________ is a river too large or too small to have eroded the valley in which it flows.
- ______ develop beneath glacial ice and lie parallel to the direction of movement.
- ______ are smooth, steep-sided, elliptical-shaped mounds.
- A(n) _____ is a hill or hummock composed of stratified sand and gravel laid down by glacial meltwater.
- A(n) _________ is a shallow, sediment-filled body of water formed by retreating glaciers or draining floodwaters.
- A(n) ________ is a long, winding ridge of stratified sand and gravel.
- A(n) _______ moraine occurs when a retreat stalls or by a minor readvancement of an ice sheet.
- A(n) ______ moraine is the outermost limit of an ice sheet and provides evidence of glacial extent.
- A(n) _________ is a linear ridge of glacial drift.
- ____ are large boulders far from source.
- ___ are water-filled depressions.
- ______ topography is characterized by small depressions.
- ____ is glacier-transported rock resting on different bedrock.
- _______ is meltwater deposits, which are sorted and stratified.
- ____ is deposited directly by a glacier, not by melt water, and is unsorted and unstratified.
- _____ is any sediment deposited by a glacier.
- Plucking, abrasion, striations, and roche moutonnee are all forms of ___________.
- The last glacial maximum occurred around _______ years ago.
- High O (this number) is characterized as being warm and wet.
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