Water on the land

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The Key words on the water in the land topic
cliffardogamez
Flashcards by cliffardogamez, updated more than 1 year ago
cliffardogamez
Created by cliffardogamez almost 11 years ago
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Question Answer
What Is Arasion? This is the wearing down of particle shaped materials against the rivers bed.
What is Attrition? This is the beating action of erosion, when the load bumps into each other
What is Discharge? Volume of water in a river at a given time usually measured in cumecs.
What is a Drainage Basin? An area of land drained by a river and its tributaries.
What is Evaporation? This is an output from the system. it is the loss of moisture directly from the rivers and lakes.
What is a Flood Plain? A flat part of land where water expands when a river floods.
What is meant by Ground water flow? This is the sideways movement of water through the rock towards the river.
What is Hydraulic action? This process involves the force of water against the bed and banks.
What is Infiltration? This is the downward movement of water through tiny pores in the soil.
What is interception? This is when rain is caught by trees and plants and cannot reach the ground. It is stored on the leaves.
What is meant by a Levees? A natural embankment on the side of a river channel.
What is Load? Material of any sort or size which is being carried by the river.
What is a Meander? This is a natural occurring bend in the river.
What is meant by an Ox-Bow lake? Where a meander has been cut off from the mainstream river.
What is Percolation? This is the downwards movement of water into rock.
What is meant by precipitation? This is how water enters the system in the form of rain,snow or hail.
What is saltation? Sand size particles are bounced along the river bed by the flow of the rivers water.
What is meant by solution? Some minerals dissolve in the rivers water such as calcium carbonate. This requires very little energy.
What is Surface Runoff? This is water that runs river the surface of the ground towards the river because the soil is saturated.
What is suspension? Fine clay and sand particles are carried along within the water even at low discharges.
What is through flow? This is the sideways movement of the water through the soil towards the river.
What is Traction? Boulders and pebbles are rolled along the river bed at times of high discharge.
What is meant by Transpiration? This is one of the ways the water is lost from the system, moisture is lost directly through the process of vegetation.
What is groundwater store? This is water stored deep underground in rocks.
What is Erosion? The process of wearing away a material.
What is Transportation? The process of carrying an type of material.
What is Deposition? The process of dropping away material.
What is Corrosion? The chemical action of the river water. he acids in the water slowly dissolve rocks such as limestone.
What is meant by the term Thalweg? This is the fastest point of the river.
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