49 terms

Year 8 Geography Revision

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developed country
highly industrialised, high income per capita
developing country
limited industrialization, low income per capita
HDI
human development index
HDI influencing factors
GDP, life expectancy, education
Urbanisation
the movement from rural to urban areas
megacity population
>10 mil
push factor
pushes people out of rural areas
pull factor
pulls people to urban areas
external migration
migration to a new home in a different state, country, or continent
internal migration
migration within a state, country, or continent
forced migration
migration as a result of unfavorable circumstances
chain migration
family member migrates, pays for other family member to migrate
seasonal migration
moving for a period of time in response to labor or climate conditions
immigration
come into another country to live permanently
emigration
to leave ones country to live in another
migration
to move
voluntary migration
migration by choice
asylum seeker
a person seeking asylum in another country
refugee
an asylum seeker who has been granted refugee status
landform
natural formed features on the earth's surface
landscape
visible features of an area
managed landscape
human altered or managed landscape
biophysical landscape
an area dominated by natural features
elements that influence landscape
natural, living, changeable, human
watershed
area of land that separates drainage basins
drainage basin
area of land that collects water to a common outlet
source
where the water comes from
mouth
where the river ends
riverine
natural landscape formed by the motion of water
channel
relatively shallow and narrow body of water
levee
natural or artificial all that blocks water from going to the floodplain
floodplain
a plain where it floods
erosion
the wearing away of the walls of a river
deposition
material being transported through the river is deposited
weathering
the breakdown and dissolving of rocks and minerals on the earth's surface
tributary
small river that flows into large river
confluence
place where rivers merge or split
discharge
the amount of water passing a given point
runoff
water that doesn't get absorbed
water table
upper level of an underground surface in which the soil is permanently saturated with water
stream order
classification of river
attrition
rocks are knocked about as they are transported, gradually decreasing in size
solution
minerals are dissolved in the water and carried along in solution
hydraulic action
the pressure of the water on the sides of the river
abrasion
the banging of rocks into the side of the river
traction
large boulders and rocks are rolled along the riverbed
saltation
small pebbles and rocks are bounced along the river bed
cause of floods
natural disaster, heavy precipitation, non-percolation due to deforestation
flood management
dams, levees, wing dykes, channel straightening, diversion spillways