Question 1

Explain the formation of sand dunes.

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Question 2

Describe the eolian processes of deflation and abrasion.

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Question 3

Degradation and loss of coastal ecosystems is a major challenge for the 21st Century.

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Coastal ecosystems such as mangroves, coral reefs, and seagrass meadows are under threat due to factors such as climate change, pollution, overfishing, and development. The degradation and loss of these ecosystems have significant impacts on biodiversity, coastal communities, and global carbon storage. Therefore, it is a major challenge for the 21st century to protect and restore these valuable ecosystems.

Question 4

What accounts for coastal straightening and the formation of a longshore current?

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Question 5

Describe the three main zones of the ocean.

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Question 6

Describe the formation and characteristics of salt marshes and mangrove swamps.What are the factors necessary for the creation of each? What are the spatial extents of each kind?

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Question 7

Describe the key features of a typical erosional coast and a typical depositional coast.

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Question 8

Loess deposits occur worldwide on every major continent other than Antarctica.

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Loess deposits are found in many parts of the world including North America, Europe, Asia, and Australia. They are not found in Antarctica due to the lack of soil and vegetation needed for their formation.

Question 9

What are the factors responsible for tides? Describe the conditions that lead to neap and spring tides.

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Question 10

Using outside sources,describe some of the challenges facing coastal environments in the 21st Century.

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Question 11

Dune migration threatens human structures and may adversely affect human health.

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Dune migration can cause damage to human infrastructure and also lead to the release of harmful dust particles that can affect human health.

Question 12

Describe loess deposits,their formation,distribution,and their importance.

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Question 13

Discuss a how a tsunami is formed,how it behaves in the open ocean,and how it behaves when it approaches and contacts the shore.Include its physical characteristics,travel speed and pattern,and nature of impact with land.

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Question 14

Describe the causes and consequences of coral bleaching.

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Question 15

Describe the process of wave motion.

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Question 16

Dunes are typically classified based on shape.

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Dunes are classified based on shape, such as barchan, transverse, longitudinal, star, and parabolic dunes.

Question 17

Soils formed from loess tend to be infertile.

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Soils formed from loess can be highly fertile due to their high content of mineral nutrients and ability to hold water. However, the fertility of the soil can also depend on other factors such as the parent material, climate, and vegetation cover.

Question 18

Describe the physical composition of seawater.

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Question 19

How do barrier islands form? What are the hazards associated with them? Why is it generally unwise for humans to inhabit them?

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Quiz 16: Oceans, coastal Processes, and Wind Processes