Practice IB Geography Topic Option B Oceans and Coastal Margins with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for Option B Oceans and Coastal Margins and mirrors Paper 1, 2, 3 style where relevant.
Get instant solutions, detailed explanations, and build confidence with questions aligned to IB examiner expectations.
The map below shows an overview of thermohaline circulation.
Source: SEAICE Portal
(a) one ocean region where surface flow moves warm water toward the poles.
(b) the direction of bottom flow in the Southern Ocean.
(d) two effects of thermohaline circulation on global climate patterns.
(e) how the disruption of thermohaline circulation could impact human societies.
(f) the importance of ocean circulation in maintaining planetary energy balance.
The map below shows The Overview of Thermohaline Circulation.
Source: SEAICE Portal
(a) Using the map, one ocean region where deep water forms.
(b) Using the map, the direction of bottom flow in the Southern Ocean (around Antarctica).
(c) Using the map, one reason why deep water forms in the Labrador or Greenland Sea.
(d) one effect of thermohaline circulation on global climate patterns.
The graph below shows global fisheries and aquaculture production (million tonnes).
Source: Food and Agriculture Organisation (FAO)
(a) Using the graph, when total aquaculture production (marine and inland combined) first exceeded total capture fisheries production.
(b) Using the graph, the approximate total global fish production in 2020.
(c) Using the graph, the overall trend in global aquaculture production from 1950 to 2020.
(d) one environmental or socio-economic reason for the rise of aquaculture as a source of fish production.
the relationship between the Indian Ocean Dipole (IOD) and extreme weather events.
two physical processes that contribute to the formation of a wave-cut platform.
(e) one other effect of thermohaline circulation on global climate patterns.
(f) how the disruption of thermohaline circulation could impact human societies.
(e) one environmental impact of increasing global aquaculture production.
(f) the implications of changing global fish production trends for food security.
