Rock type – in drainage basins where the underlying geology consists of relatively soft (and easily eroded) sandstones and clays, the sediment transported consists mainly of sand or clay particles.

The competence of a river is the diameter of the largest particle that it can carry for a given velocity. Flood risk during the summer is normally reduced by dry soil conditions – but in this case the record early summer rainfall meant that soils were already close to saturation.Geography is the study of the earth's features, population distribution, resources and the effects on human activities. It is the movement of loose unconsolidated material due to the frictional drag of the moving water on sediment lying on the channel bed . Such a balance between energy and work cannot occur at a particular moment in time but is suggested as an average position over a long time. The shape of the channel influences the velocity of the river In the upper course there is a large wetted perimeter.

Plate boundaries, known as divergent, convergent, and transform, work differently yet have a unified impact on the movement and structure of the land. Covering the material from Geography I, II, and III, these flashcards will help your student master the physical and cultural geography of the world. Over 900 smart flashcards covering critical facts, case studies, and content from the specification topics. This set of flashcards covers all of the major recognized countries and territories that are considered to be landlocked. Around 70-80 cars were swept away in Boscastle and 100 people were airlifted to safety by the emergencys.The melting of snow, particularly when the subsoil is still frozen, so the infiltration capacity is reduced. You will also have the added bonus of being able to use them for spaced repetition, giving you the opportunity to really get to know the information.

Vertical erosion dominates because the river is attempting to cut down to its base level, which it usually sea level. Here there is a lack of erosion and reduced competence of the river, which results in large scale deposition.Flocculation occurs as fresh water mixes with seas water and clay particles coagulate due to chemical reaction. Keep in mind that anyone can view public collections - they may also appear in recommendations and other places.

The content covered in these flashcards only highlights the five main themes in geography and does not provide extensive details. The river falls over a rock edge into a deep plunge pool at the foot of the fall, where the layers of weak rock are excavated more quickly than the overlying resistant rock.Size of the drainage basin – large drainage basins with many tributaries have a greater potential for transporting sediment, particularly in their lower courses, than do small drainage basins.