Glacial Features and Processes Quiz
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Questions and Answers

What is a glacier?

A large mass of moving ice and snow on land

What is an ice sheet?

A large mass of compressed ice

What is a glacial period?

A period of cooler climate characterized by the advancement of glaciers

What is glacial advance?

<p>The forward movement of a glacier's toe when the supply of snow exceeds the ablation</p> Signup and view all the answers

What is glacial retreat?

<p>The movement of a glacier's toe back toward the glacier's origin; glacial retreat occurs if the rate of ablation exceeds the rate of supply.</p> Signup and view all the answers

What is glacial ablation?

<p>The removal or loss of snow on a glacier. Caused by melting, evaporation, sublimination, wind erosion, and calving</p> Signup and view all the answers

What is an interglacial period?

<p>A geological interval of warmer global average temperature lasting thousands of years that separates consecutive glacial periods within an ice age</p> Signup and view all the answers

What is paleoclimate?

<p>A climate prevalent at a particular time in the geological past.</p> Signup and view all the answers

What are Milankovitch Cycles?

<p>Changes in the shape of Earth's orbit and tilt that cause glacial periods and interglacial periods.</p> Signup and view all the answers

What is solar insolation?

<p>A measure of the quantity of solar radiation received on the surface of the earth in a particular region or space in a particular period of time.</p> Signup and view all the answers

What are Glacial-Interglacial Cycles?

<p>Global cooling trend last 50-60 million years. Cycles driven by variation in Earth's orbit around Sun through time. Results in different amount and distribution of solar energy. These variations affect growth and melting of ice sheets</p> Signup and view all the answers

What is the Ice-Albedo Effect?

<p>Ice caps reflect sunlight which leads to melting and exposed H2O which absorbs and retains sunlight. The warmer H2O melts more ice. A natural process that helps drive ice ages.</p> Signup and view all the answers

What is a Glacial Maximum?

<p>A period during which ice sheets reached their maximum extent</p> Signup and view all the answers

What is the Geological Time Scale?

<p>A time scale established by geologists that reflects a consistent sequence of historical periods, grouped into four eras: Precambrian, Paleozoic, Mesozoic, and Cenozoic.</p> Signup and view all the answers

What is the Paleolithic Era?

<p>Called the old stone age from 10,000 to 2.5 million years ago; where people were concerned with food supply, they used stone as well as bone tools, they were nomadic hunters and gatherers.</p> Signup and view all the answers

What is the Lower Paleolithic Era?

<p>The early phase of human prehistory characterized by the presence of specific tool types such as choppers, bifaces, handaxes, and cleavers</p> Signup and view all the answers

What is the Middle Paleolithic Era?

<p>Cultural developments: jewelry, body painting, ritual; simple ceramics; and beginning hints of art</p> Signup and view all the answers

What is the Pre Pottery Phase?

<p>Phase in the early Neolithic period characterized by the introduction of new subsistence strategies and the development of permanent settlements</p> Signup and view all the answers

Study Notes

Glacial Features and Processes

  • Glacier: A large mass of moving ice and snow on land.
  • Ice Sheet: A massive compressed ice mass.
  • Glacial Period: A cold period marked by glacier advancement.
  • Ice Age: A very cold period with extensive ice sheets.
  • Glacial Advance: Glacier movement due to snow exceeding ablation.
  • Glacial Retreat: Glacier movement back due to high ablation.
  • Glacial Ablation: Ice loss from melting, evaporation, sublimation, wind, and calving.
  • Interglacial Period: A warmer interval between glacial periods.
  • Paleoclimate: Past climates.
  • Milankovitch Cycles: Earth's orbital and tilt changes affecting glacial/interglacial cycles.
  • Solar Insolation: Sun's energy reaching Earth's surface.
  • Glacial-Interglacial Cycles: Earth's cooling trends driven by orbital variations, affecting ice sheet growth/melt.
  • Ice-Albedo Effect: Ice reflecting sunlight, leading to melting and further warming.
  • Glacial Maximum: Point where ice sheets reach maximum extent.
  • Geological Time Scale: A timeline of Earth's history divided into eras.

Prehistoric Eras and Cultures

  • Paleolithic Era: The Old Stone Age (2.5 million to 10,000 years ago), nomadic hunting and gathering.
  • Lower Paleolithic Era: Early Paleolithic, simple tool types (choppers, bifaces).
  • Middle Paleolithic Era: Cultural developments like jewelry and art, more complex tools.
  • Upper Paleolithic Era: Organized settlements, improved hunting, and the earliest art forms.
  • Mesolithic Era: Middle Stone Age; Smaller and more complex tools.
  • Neolithic Era: New Stone Age; Fire, tools like saws and drills, and subsistence strategies change.
  • Pre-Pottery Phase: Early Neolithic period, permanent settlements, new subsistence strategies.
  • Pottery Phase: Later Neolithic period, pottery production, notably in specific regions.

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Description

Test your knowledge on glacial features and the processes that shape them with this quiz. Learn about glaciers, ice sheets, and the factors influencing glacial and interglacial periods. Challenge yourself with questions covering key concepts like glacial advance, retreat, and paleoclimate.

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