Exam (elaborations)
Edexcel A level Geography Coasts June 2024 Exam Questions and Answers
- Module
- Edexcel A level Geography
- Institution
- Edexcel A Level Geography
Edexcel A level Geography Coasts June 2024 Exam Questions and Answers
[Show more]
Content preview
Edexcel A level Geography Coasts June2024 Exam Questions and Answers
Littoral Zone - Answer>>Area of shoreline where land is subject
to wave action
Littoral Zone Subdivisions - Answer>>- Offshore
- Nearshore
- Foreshore
- Backshore
- Beach
Offshore - Answer>>Where waves begin to break in the deeper
water. Friction between the waves and the sea bed may cause
some distortion of the wave shape.
Nearshore - Answer>>Friction between the seabed and waves
distorts the wave sufficiently to cause it to break.
Possible breakpoint bar formation.
Foreshore - Answer>>The area between the high tide and the
low tide mark.
Backshore - Answer>>The area above the high tide mark,
affected by wave action only during major storm events.
Why are Littoral zones dynamic zones of rapid change? -
Answer>>Short term - Changing inputs, through flows and
outputs of energy and material. High and low tide variation, wave
energy due to weather.
Long term - Sea level variation due to climate change
Classifying Coasts - Long Term Criteria (2) - Answer>>-
Geology
,- Sea Level Change
Classifying Coasts - Geology - Answer>>- Characteristics of
land, including lithology (rock type) and structure (arrangement of
rock units).
- Used to classify coasts as cliffed, sandy, estuarine, concordant
and discordant
Cliffed Coastline (4) - Answer>>- High energy environment
- Rate of Erosion exceeds Deposition.
- High relief varying from a few meters to hundreds of meters
- Resistant Geology
Sandy Coastline (5) - Answer>>- Low Relief with Sand Dunes
and Beaches
- Less Resistant Geology
- Low energy environment
- Rate of Deposition exceeds Erosion
- Constructive waves
Estuarine Coastline (5) - Answer>>- Low Relief with Salt
Marshes and Mudflats
- Form in River Mouths
- Low energy environment
- Rate of Deposition exceeds Erosion
- Less Resistant Geology
Classifying Coasts - Sea Level Change - Answer>>- Used to
Classify Coasts as Emergent or Submergent
- Caused by eustatic/isostatic changes
- Caused by climate change
Climate Change caused by Cycles - Answer>>- Sea Levels rise
and fall in 100,000 year cycles
,- Due to Earths Orbit
- Falls for 90,000 years as ice sheets expand
- Rises for 10,000 years during interglacial periods
- Rises when all surface ice melts
Emergent Coastline - Answer>>As Sea Levels fall, coastline
land is exposed which was previously covered by the sea
Submergent Coastline - Answer>>As Sea Levels rise, the land
is covered
Concordant Coastline - Answer>>- Alternating bands of rock
that run parallel to the coastline
- Also called Dalmatian Coasts
Discordant Coastline - Answer>>- Alternating bands of rock that
run at 90 degrees to the coastline
- Also called Atlantic Coasts
Classifying Coasts - Short Term Criteria (3) - Answer>>- Energy
Inputs
- Sediment Inputs
- Advancing/Retreating
Classifying Coasts - Energy Inputs (5) - Answer>>- Used to
classify High/Low Energy Coastlines
- Waves (Main Input)
- Tides (Moon's Gravitational Pull)
- Currents
- Rivers
Classifying Coasts - Sediment Inputs - Answer>>- Sediment is
added through deposition and removed through erosion
, - Sediment Inputs received by waves and wind, tides, currents,
mass movement and tectonic processes
Classifying Coasts - Advancing/Retreating - Answer>>-
Classified as Advancing/Retreating due to processes
- Long Term Processes = Emergent/Submergent Coastline
- Short Term Processes = Eroding/Outbuilding Coastline
Outbuilding Coastline - Answer>>- Erosion < Deposition
- Net gain of sediment
- Coastline advances
Eroding Coastline - Answer>>- Erosion > Deposition
- Net loss of sediment
- Coastline retreats
Cliffed Coasts - UK - Answer>>- Occupy 1,000km of UK
coastline
- Mainly located in North and West
- High relief = 427m (Conachair Cliff, Isle of Hirtha)
- Low Relief = 3m (Chappel Porth, Cornwall)
Weathering - Answer>>Breakdown of rock in situ, and may be a
mechanical, biological or chemical process.
Erosion - Answer>>Wearing away of land due to wave action
Mass movement - Answer>>Downslope movement of material
due to the force of gravity.
Formation of Coastal Plains - Answer>>- Formed by Coastal
Accretion (Continuous net deposition causes coastline to extend
seawards)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller RevisionKing. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.08. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now