Fertilisers — Difficult
Transfer your understanding to a changed context, justify decisions and check your reasoning. No hints during the test.
Extension practice
The standalone fertiliser chemistry topic is additional practice beyond this qualification’s chemistry section.
Easy, Normal and Difficult describe practice demand; they are not the official Core and Extended tiers.
- igcse-cambridge-cie-0653 2028–2029 · C10.1–C10.2
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