IB ESS HL 4.2.13 Hl Water Stress Definition Questions
Define water stress and interpret thresholds of demand relative to supply.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Exam points
- define water stress as demand for water approaching or exceeding available supply
- identify crops or countries with greatest, lowest or unchanged projected water stress from data
- interpret water-stress maps and projections to compare relative change and infer implications for agricultural or national water security
IB ESS HL 4.2.13 Hl Water Stress Definition Questions question 1
Figure:Water stress for selected crops
Water stress is the total annual extraction of water as a proportion of the renewable supply in a given area. If the extraction represents 40 % or more of the available supply it is described as a high risk area.
State the crop that is under the greatest water stress.
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