River landscapes in the UK Which word describes the process of erosion when stones collide with each other as they move downstream? Shade one circle only - AQA - GCSE Geography - Question 4 - 2023 - Paper 1

Rivers transport material through processes such as suspension, which involves small particles being carried along with the water flow. This allows for lighter sediments to remain suspended and transported over long distances.

The approximate area of grid square 0495 covered with salt marsh is A. 0.4 km². Based on the grid square's visual representation, this estimate captures the extent of the salt marsh area.

1. Estuaries are typically areas where freshwater from rivers meets and mixes with saltwater from the sea, creating unique brackish water habitats.
2. They often have diverse ecosystems that provide important habitats for various wildlife, including migratory birds and fish species.

Physical factors such as precipitation, topography, and land use significantly influence flood risk. For example, heavy rainfall can saturate soils and lead to runoff, increasing river discharge. Additionally, steep slopes can accelerate runoff, while urbanization creates impermeable surfaces, exacerbating flooding risks.

Flood management schemes can lead to both beneficial and detrimental outcomes. On one hand, they may reduce flood risk for urban areas. However, they can also cause ecological disruption, affect local habitats, and may not address the root causes of flooding. Furthermore, communities might become overly reliant on such schemes, thereby neglecting natural flood management strategies.