Unit 8: Option B — Oceans and Coastal Margins
Topic 8.3: Managing coastal margins Questions
Practice 20 exam-style questions for IB Geography Topic 8.3. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1identify1 mark
Ocean acidification is caused by seawater absorbing…
Markscheme and model answer locked
Unlock Question2identify1 mark
One reason ocean pollution is hard to manage is that the ocean is…
Markscheme and model answer locked
Unlock Question3identify1 mark
Most marine pollution starts on land and reaches the ocean via…
Markscheme and model answer locked
Unlock Question4identify1 mark
Plastic pollution concentrates along coastlines mainly because…
Markscheme and model answer locked
Unlock Question5Calculate1 mark
2026
Calculate the total cost of the sea wall.
Markscheme and model answer locked
Unlock Question6State1 mark
2026
State one example of hard engineering used to manage coastal erosion.
Markscheme and model answer locked
Unlock Question7State2 marks
2026
State two disadvantages of hard engineering at the coast.
Markscheme and model answer locked
Unlock Question8Outline4 marks
2019
A marine park places its strictest protection zone around an offshore reef. Outline one physical and one human reason for this location.
Markscheme and model answer locked
Unlock Question9Explain4 marks
Explain why managing a fragile coastal ecosystem, such as a coral reef or mangrove forest, often creates conflict between stakeholders.
Markscheme and model answer locked
Unlock Question10Identify1 mark
2019
Using the table, identify the activity that is most restricted.
Markscheme and model answer locked
Unlock Question11Outline4 marks
A coral-reef marine park places a strict no-take Preservation Zone in one area of the coast. Outline one physical and one human reason that could explain why the zone is sited there.
Markscheme and model answer locked
Unlock Question12Suggest4 marks
Suggest two reasons why managed retreat is often a controversial way to manage an eroding coast.
Markscheme and model answer locked
Unlock Question13identify1 mark
Eutrophication is best described as…
Markscheme and model answer locked
Unlock Question14Explain4 marks
Explain how nutrient pollution from the land can damage a coastal marine ecosystem.
Markscheme and model answer locked
Unlock Question15Explain4 marks
Explain two reasons why conflicts over coastal management are often hard to resolve.
Markscheme and model answer locked
Unlock Question16identify1 mark
A sea wall in one place can harm a neighbouring coast because it…
Markscheme and model answer locked
Unlock Question17Estimate4 marks
The table shows the management zones of a coastal marine park and how restricted each human activity is in them.
Markscheme and model answer locked
Unlock Question18Identify1 mark
2019
The table shows which activities are allowed in the zones of a marine park. Identify the activity that is least restricted.
Markscheme and model answer locked
Unlock Question19Explain4 marks
Explain one advantage and one disadvantage of using hard engineering, such as a sea wall, to defend a coast.
Markscheme and model answer locked
Unlock Question20Identify3 marks
The table compares four coastal-management strategies a council is considering for an eroding stretch of coast.
Markscheme and model answer locked
Unlock QuestionReady to practice Topic 8.3?
Get instant AI feedback on your answers, view detailed markschemes, and track your progress across all IB Geography topics.