What are sub-aerial processes and why are they important?
Sub-aerial processes include weathering and mass movement. These processes operate on the cliff face to weaken it and provide material for coastal erosion.
What are sub-aerial processes a level geography?
Sub-aerial process are land-based processes which alter the shape of the coastline. These are a combination of weathering and mass movement.
What is the definition of sub aerial?
: situated, formed, or occurring on or immediately adjacent to the surface of the earth subaerial erosion subaerial roots.
What role does sub aerial processes perform with coastal recession?
Subaerial processes (weathering and mass movement) work together to influence rates of coastal recession. Weathering weakens rocks above high tide mark, making mass movement easier by reducing the internal cohesion of the rock. Repeated mass movement leads to rapid coastal recession.
Which is characteristic of Submergent coasts?
Features associated with submergent coasts include flooded river mouths, fjords, barrier islands, lagoons, estuaries, bays, tidal flats, and tidal currents. In submergent coastlines, river mouths are flooded by the rising water, for example Chesapeake Bay.
What is coastal erosion BBC Bitesize?
Coastal erosion is the wearing away and breaking up of rock along the coast. Destructive waves erode the coastline in a number of ways: Hydraulic action: Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens the cliff and causes erosion.
What are the sub aerial modification of the stem?
Subaerial modifications of Stem: In subaerial modifications, the stem is partly aerial and partly underground. Short aerial branches and adventitious roots develop at the nodes. Detachment of entire branch or a node can develop into a new plant.
Which of the following is the sub aerial stem modification with long Internode?
The runner
Complete answer: The runner is a subaerial stem modification with a long internode and a creeping stem.
What is the difference between submergent and emergent Coast?
Coastlines of Emergence and Submergence Coastline of emergence is formed either by an uplift of the land or by the lowering of the sea level. Coastline of submergence is an exact opposite case. The west coast of India, on the other hand, is both emergent and submergent.