Topic 4 UK's Physical Environment Flashcards
(44 cards)
What physical processes shape the UK’s landscape?
Weathering, erosion, deposition, glaciation, tectonic processes.
What are the main rock types found in the UK?
Sedimentary (chalk, limestone), igneous (granite), metamorphic (schists, slates).
What coastal processes create landforms like cliffs, spits, and bays?
Erosion (hydraulic action, abrasion), transportation (longshore drift), and deposition.
How does human activity impact coastal landscapes?
Coastal management (sea walls, groynes) alters natural processes, sometimes causing conflicts.
What processes shape river landscapes?
Erosion (vertical and lateral), transportation (traction, saltation), and deposition.
Why is river flooding increasing in the UK?
Urbanisation, climate change (more intense rainfall), land-use changes.
How can river flooding be managed?
Hard engineering (flood barriers, embankments) and soft engineering (floodplain restoration).
What landforms are created by erosion along the coast?
Cliffs, wave-cut platforms, arches, stacks, stumps.
How are beaches and spits formed?
By deposition from longshore drift moving material along the coast.
What factors influence the shape of river valleys?
Upper course – steep, V-shaped valleys; lower course – wide, flat floodplains.
What is a meander and how does it form?
A bend in a river formed by lateral erosion and deposition.
What are oxbow lakes?
Curved lakes formed when a meander is cut off from the river.
What coastal management strategies are used in England?
Hard engineering (sea walls, groynes) and soft engineering (beach nourishment, managed retreat).
What is the impact of flooding on the UK?
Flooding affects homes, agriculture, infrastructure; it increases insurance costs and damages local economies.
How does the process of glaciation impact the landscape?
Glaciers shape valleys, create U-shaped valleys, and deposit sediment to form features like drumlins and moraines.
What are some common landforms created by river processes?
Meanders, ox-bow lakes, floodplains, and deltas are formed through erosion and deposition by rivers.
What factors lead to river flooding?
Urbanisation (reduced infiltration), heavy rainfall, deforestation, and poor land management.
What landforms are associated with the Snowdonia region?
Glacial features, such as U-shaped valleys, corries, and moraines, are common in Snowdonia.
What is the geology like in the Cheshire Plain?
The Cheshire Plain is mainly made up of sedimentary rocks such as sandstones and shales.
How does the weather in the UK contribute to weathering and erosion?
Rainfall, freeze-thaw cycles, and wind contribute to physical, chemical, and biological weathering.
What is the importance of the Weald in terms of geological history?
The Weald has important geological formations and is rich in clay, which contributes to its landscape features.
How do human settlements affect river landscapes?
Urban development, damming, and channelisation can change river flow and sedimentation.
What is the significance of Scafell Pike in the Lake District?
Scafell Pike is the highest mountain in England, shaped by glacial processes.
How does coastal erosion affect places like the Weald?
Erosion along the coast in the Weald can lead to the loss of land and property, especially during storms.