# HSC 2026 Geography: Understanding Floodplain Formation Through Creative Questions

*Insights into the creative question on floodplain and plateau formation for HSC 2026 Geography exam.*

June 13, 2026 · Education

## At a glance

- Floodplains form from silt accumulation along riverbanks.
- Plateaus are elevated, extensive, and uneven landforms.
- Barind region's red soil is due to oxidized and iron-rich composition.

Floodplains are formed by the accumulation of silt carried by floodwaters along riverbanks. Plateaus, on the other hand, are elevated, extensive, and uneven landforms that stand several hundred meters above sea level, covering about 5% of the Earth's land. The red soil of the Barind region is due to its oxidized and iron-rich composition. Plateaus can form through tectonic movements, erosion of ancient mountains, lava accumulation, wind-blown sand, or ice accumulation.

## Formation of Plateaus

Plateaus can be formed by various processes including tectonic movements, erosion, lava accumulation, wind-blown sand, and ice accumulation. Examples include the Tibetan Plateau, Colorado Plateau, and Greenland Plateau.

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Source: https://pulsetoday.com.bd/en/education/hsc-2026-geography-floodplain-plateau-formation