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Previous Year Question Patterns
| Year | Q# | Marks | Question | Topic Area |
|---|---|---|---|---|
| 2021 | Q1 | 2 | What is the time range of the Mesozoic era? | Geological time scale |
| 2021 | Q2 | 2 | Describe the structure of Sial | Earth interior — crust |
| 2023 | Q32 | 5 | Describe the characteristics of the Carboniferous period | Geological time scale |
| 2016 | — | 10 | Geological time scale (era-by-era description) | Full GTS |
| 2018 | — | 10 | Earth's interior layers with discontinuities | Interior structure |
PYQ Analysis:
- 2-mark questions test factual recall: time ranges (Mesozoic = 252–66 Ma), composition (Sial = Silica + Aluminium)
- 5-mark questions require structured description: Carboniferous = vegetation + atmosphere + animal life + rock formation
- 10-mark questions require comprehensive treatment: draw cross-section of Earth's interior with all layers and discontinuities, or trace life through all eras
- 2026 prediction: Given the 2026 pattern eliminates 2-mark questions, expect a 5-mark on either (a) specific geological period characteristics or (b) one of the discontinuities; and a 10-mark on either interior structure or full geological time scale