Chapter 14

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

What happens to sea-level when glaciers melt? Question 10 options: local isostatic depression sea-level stays the same sea-level falls globally sea-level rises globally

sea-level rises globally

In a cross-sectional view of a glacier, where does the ice actually undergo ductile deformation (i.e. flow internally)? Question 7 options: In the area with the largest crevasses The top 100 feet The upper 500 feet or less than 100 kilopascals The lower part of the glacier where stress exceeds 100 kilopascals

The lower part of the glacier where stress exceeds 100 kilopascals

Plastic deformation means that _______. Question 11 options: a material cracks under pressure a material is made of organic polymers similar to plastic a material breaks when stressed by a force a material bends or flows when stressed by a force

a material bends or flows when stressed by a force

A(n) _______ is confined to a long, narrow valley located in mountainous areas especially closer to the poles. Question 14 options: alpine glacier ice sheet continental glacier mountainous glacier

alpine glacier

Which of the following is NOT a glacier Question 5 options: flowing valley ice an iceberg the Laurentide ice sheet the Greenland ice sheet

an iceberg

In this image, what is "F" Question 6 options: terminal moraine arete horn tarn

horn

What is the main cause of the glacial cycles during the Quaternary Ice Age? Question 3 options: global tectonics sea-level change carbon dioxide milankovitch cycles

milankovitch cycles

In a glacier, crevasses extend from the surface down to: Question 13 options: near the base of the brittle zone near the base of the glacier where they remain open but are deformed in the plastic zone where they become clogged by debris carried in the ice

near the base of the brittle zone

The Antarctic ice sheet has been there for several million years, causing what change to the Antarctic continent? Question 15 options: Summer no longer occurs there a type of metamorphism called cryomorphism has taken place there rocks of the continent have been spread out away from the south pole parts of the continent have been depressed below sea level

parts of the continent have been depressed below sea level

In this image, what is 'C'

tarn

In this image what is feature "D"

terminal moraine

What does it mean when a glacier "advances"? Question 12 options: the glacier is calving into the ocean, where pieces of ice are becoming icebergs the terminus of the glacier is shifting forward; the glacier is growing longer it is flowing downhill towards the end of the glacier it is gaining snow as fast as it is losing it; the glacier is not shrinking

the terminus of the glacier is shifting forward; the glacier is growing longer

Which of the following conditions would NOT lead to a glacier advancing? Question 8 options: more winter snow and less summer melting warm summers cool summers more winter precipitation than normal

warm summers

The equilibrium line divides the _______ from the _______. Question 1 options: brittle zone; plastic zone erosion zone; deposition zone zone of freezing; zone of melting zone of accumulation; zone of ablation

zone of accumulation; zone of ablation

In this image, what is feature "A" Question 4 options: horn cirque hanging valley terminal moraine

hanging valley


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