Human Interference with Coasts (Leaving Cert Geography): Quizzes
📚Quizzes
Practise the questions
14 questions from this quiz
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Practise the questions
14 questions from this quiz
What problem did sand & silt deposits cause at Dublin Harbour?
What problem did sand & silt deposits cause at Dublin Harbour?
Ships ran aground entering the harbour
When were the North & South Bull Walls built in Dublin Bay?
When were the North & South Bull Walls built in Dublin Bay?
1818-1825
What are the dimensions of Bull Island?
What are the dimensions of Bull Island?
5 km long and 700 metres wide
When was Bull Island officially recognised as a bird sanctuary?
When was Bull Island officially recognised as a bird sanctuary?
1930
How do vehicles damage Bull Island's natural structure?
How do vehicles damage Bull Island's natural structure?
They compact sand, reducing wind transport
How much of Ireland's 3,171 km coastline is at risk?
How much of Ireland's 3,171 km coastline is at risk?
Roughly half
What design feature helps sea walls deflect waves?
What design feature helps sea walls deflect waves?
Curved tops
What are gabions made from?
What are gabions made from?
Steel mesh cages filled with stones
What negative effect do groynes create?
What negative effect do groynes create?
They deprive nearby areas of sediment
Why is rock armour not a popular choice for coastal defence?
Why is rock armour not a popular choice for coastal defence?
It appears bulky & takes up beach space
What characterises beach nourishment as a method?
What characterises beach nourishment as a method?
Very expensive & labour-intensive
Why is Marram grass suitable for coastal protection?
Why is Marram grass suitable for coastal protection?
It tolerates salt spray & binds sand
How much damage did Storm Darwin cause at Lahinch in 2014?
How much damage did Storm Darwin cause at Lahinch in 2014?
Over €6 million
Why were gabions replaced with rock armour at Lahinch in 2017?
Why were gabions replaced with rock armour at Lahinch in 2017?
Gabions were insufficiently durable