Unit 8: Option B — Oceans and Coastal Margins
Topic 8.1: Ocean–atmosphere interactions Questions
Practice 20 exam-style questions for IB Geography SL Topic 8.1. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Suggest4 marks
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Suggest how warming oceans could increase the risk that tropical storms pose to a low-lying coast.
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Identify and explain one economic effect that a La Nina event has on people or industries in a named region.
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Explain why tropical storms form mainly between about 5 and 20 degrees latitude and not on the Equator itself.
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The table shows the predicted track of a tropical storm over three days.
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Explain how a warm ocean provides the energy that powers a tropical storm.
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During an El Nino event, the eastern Pacific Ocean off Peru becomes…
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The thermohaline conveyor belt is driven mainly by differences in…
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Outline one reason why tropical storms become more active when the ocean surface is warmer.
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Outline one way in which the oceanic conveyor belt moves nutrients through the oceans, and develop your answer.
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Upwelling supports large fisheries because it brings…
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Which factor lets a tropical storm spin?
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The table summarises the surface-current directions around the edge of the North Pacific Gyre.
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A tropical storm in the Indian Ocean is usually called a…
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Which is a typical impact of a La Nina event?
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Outline two conditions, other than a warm ocean, that are needed for a tropical storm to form.
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In the northern hemisphere, an ocean gyre usually circulates…
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Outline why tropical storms tend to form over warm tropical oceans.
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Identify and explain one way a La Nina event alters the climate or weather of a named region.
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Explain why a tropical storm weakens once it moves over land or cooler water.
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Explain how an El Nino event affects the upwelling and fishery off the coast of South America.
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