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IB ESS SL 4.3.3 Increasing Demand Questions

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

Syllabus
First assessment 2026
Course
ESS SL
Level
SL

Exam points

  • explain how population growth, affluence, diet preferences, technology, profitability and limited arable land increase demand for aquatic food
  • calculate projected increases in crustacean, freshwater-fish and mollusc harvest from data
  • analyse rising aquatic-food production by comparing aquaculture and capture fisheries, food security, resource limits, conservation 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 SL 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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