Glaciers Flashcards

1
Q

What is a glacier?

A

A glacier is a massive, slow-moving body of ice formed from compacted layers of snow.

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2
Q

True or False: Glaciers only exist in Antarctica.

A

False

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3
Q

What are the two main types of glaciers?

A

The two main types of glaciers are valley glaciers and continental glaciers.

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4
Q

Fill in the blank: The largest ice sheet in the world is located in ______.

A

Antarctica

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5
Q

What is the primary cause of glacier retreat?

A

The primary cause of glacier retreat is climate change, leading to increased temperatures and melting.

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6
Q

Which region is known for its extensive ice caps and glaciers?

A

The Arctic region.

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7
Q

Multiple Choice: Which of the following is a consequence of melting glaciers? A) Rising sea levels B) Increased biodiversity C) More freshwater availability

A

A) Rising sea levels

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8
Q

What is the term for the process by which glaciers flow and shape the landscape?

A

Glacial erosion

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9
Q

True or False: The Antarctic ice sheet contains about 60% of the world’s fresh water.

A

True

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10
Q

What is the impact of melting Arctic sea ice on global weather patterns?

A

Melting Arctic sea ice can disrupt weather patterns, leading to extreme weather events.

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11
Q

Fill in the blank: The phenomenon where glaciers melt and contribute to rising sea levels is known as ______.

A

glacial melt

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12
Q

Short Answer: Name one major glacier in the Arctic.

A

The Jakobshavn Glacier.

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13
Q

What is the significance of the Antarctic Peninsula in climate change studies?

A

The Antarctic Peninsula is one of the fastest-warming regions on Earth.

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14
Q

True or False: Glaciers can grow in size if temperatures remain constant.

A

True

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15
Q

What is the term for the boundary between the zone of accumulation and the zone of ablation in a glacier?

A

The equilibrium line.

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16
Q

Multiple Choice: Which of the following factors contributes to glacier formation? A) High temperatures B) Low precipitation C) Cold temperatures

A

C) Cold temperatures

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17
Q

Fill in the blank: The melting of glaciers contributes to ______, which can lead to coastal flooding.

A

sea level rise

18
Q

What role do glaciers play in Earth’s freshwater supply?

A

Glaciers serve as a crucial freshwater reservoir, releasing water gradually into rivers and lakes.

19
Q

True or False: All glaciers are retreating due to climate change.

20
Q

What is the name of the process by which glaciers transport rocks and sediment?

A

Glacial transport

21
Q

Short Answer: What is permafrost?

A

Permafrost is permanently frozen ground found in polar regions.

22
Q

Multiple Choice: What percentage of the world’s freshwater is stored in glaciers? A) 20% B) 30% C) 69%

23
Q

Fill in the blank: The loss of glaciers can disrupt ______ water supplies for millions of people.

24
Q

What is the main driver of climate change affecting glaciers?

A

Human-induced greenhouse gas emissions.

25
True or False: The Arctic is experiencing warming at twice the global average rate.
True
26
What is a significant effect of glacier melt on ocean currents?
It can alter ocean salinity and disrupt major ocean currents.
27
Fill in the blank: The ______ effect refers to the warming of the Arctic region faster than other parts of the world.
Arctic amplification
28
Short Answer: What is calving in the context of glaciers?
Calving is the process where chunks of ice break off from the edge of a glacier.
29
What is the relationship between glaciers and sea level rise?
As glaciers melt, they contribute water to the oceans, leading to sea level rise.
30
True or False: Glaciers can form in areas with high temperatures if there is enough snowfall.
True
31
What are ice shelves, and where are they commonly found?
Ice shelves are floating extensions of glaciers found in Antarctica.
32
Multiple Choice: Which of the following is NOT a type of glacier? A) Valley glacier B) Ice cap C) Snowfield
C) Snowfield
33
Fill in the blank: The phenomenon of glaciers moving due to gravity is called ______.
glacial flow
34
What is the primary method used to study glacier dynamics?
Satellite remote sensing.
35
True or False: Glaciers can influence local climates by affecting wind patterns.
True
36
What is the term for meltwater that flows from glaciers?
Glacial meltwater
37
Short Answer: What is the main difference between valley glaciers and continental glaciers?
Valley glaciers flow down valleys, while continental glaciers cover vast areas and are not confined to valleys.
38
What is a glacier's zone of accumulation?
The area where snow accumulates and compacts to form ice.
39
Multiple Choice: What is one major consequence of the loss of Arctic ice? A) Increased carbon capture B) Improved shipping routes C) More stable weather patterns
B) Improved shipping routes
40
Fill in the blank: The ______ is the line on a glacier where accumulation equals ablation.
equilibrium line
41
What is the significance of the Greenland ice sheet?
The Greenland ice sheet is the second largest ice body on Earth and a critical indicator of climate change.
42
True or False: Glacial melt can lead to the release of trapped greenhouse gases.
True