Energy resources — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Includes extension practice
Resource energy pathways and efficiency are included. Detailed fusion research and the broader five-factor resource evaluation extend the listed objectives.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- Cambridge IGCSE Combined Science 0653 syllabus 2028–2029 · P1.6.3, p47
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