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IB ESS HL 4.3.3 Increasing Demand Questions

Evaluate how population, income and technology increase pressure on aquatic resources.

Syllabus
First assessment 2026
Course
ESS HL
Level
HL

Exam points

  • explain why aquaculture or crustacean production increases through population, affluence, diet, technology, profitability and depleted wild stocks
  • use production data and calculations to quantify changes in aquatic food harvests
  • evaluate growth in capture fisheries and aquaculture by weighing food security, economic incentives, resource limits and environmental sustainability

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Study 4.3.3—Increasing demand conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB ESS HL 4.3.3 Increasing Demand Questions question 1

[Maximum number: 2]
Figure Global seafood harvests for 2019 and projected harvest for 2050

Figure Global seafood harvests for 2019 and projected harvest for 2050

Question (a)

(a)

Using Figure, calculate the projected increase in the harvest of freshwater fish between 2019 and 2050.

[ 1 ]

Question (b)

(b)

Outline one reason for the increase referred to in (b)(i).

[ 1 ]
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