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World geography

Terms

undefined, object
copy deck
negative growth
has less babies than adults
culture region
an area that includes many different countries that have certain traits in common(economic systems,religion,forms of gov,,and social groups).the regions used in text:Russia,US and canada,latin america,northern africa and southwest asia(middle east),europe,south asia,east asia,southwest asia,australia and oceanis,africa south of the sahara
language families
are diverse languages with similar roots
confluence
flowing together of two or more rivers or streams
relief
changes in elevation over agiven area of land
80% of U.S. corpland loses...
1 inch of topsoil every 33 years. this is 20 times the natural average. it takes 100 years to grow 1 inch of topsoil.
populaton pyramid
shows the portion of the population for each age group and sex. usually females are on the right side of the graph.
leeward
the side away from the wind
carrying capacity
how many people the land can sustain(support)
prevailing wind
wind that blows form the same direction most of the time
harbor
a sheltered place along a shoe line where ships can anchor safely
cultural divergence
is the restrivtion of a culture from outside cultural influences. repressive gov. often restrict 1.movement into and out of the country 2.transportation and communication(radio and tv transmission,newspaper,internet,etc.)into a country
pacific coast of north america
1/32
ethnic groups
people who share a common language,history,place of origin or a combination of these
rain shadow
an area having lighter than average precipatation b/c it is blocked by mountains from prevailing winds that might bring rain
photic zone
1/3200
sound
broad inland body of water,often between a coastline and 1 or more islands off the coast
alluvial plain
flood plain where flooding rivers deposit rich soil
wetland
a lowland area,such as a marsh or swamp,that is saturated with moisture
photic zone
the top 100 meters of the ocean where light can penetrate.plants can turn light into food(photosynthesis)animals then eat the plants.
zero population growth
when a population's birth and death rates are equal
5 major religions
buddhism,hinduism,islem,christianity,judaism
birth rate
the average number of births per 1,000 people per year
natural increase
growth or decline caused by subtracting the birth rate from the death rate(this is different from annual growth rate b/c it does not include immigration and emigration)
peninsula
body of land jutting into a lake or ocean,surrounded on three sides by water
ox-bow lake
a bow shaped lake formed in a former channel of a river
orographic rain
rain caused by mountains that stand in the way of moist air. as the air is forced upward to pass over the mountains, it cools. since cooler air can hold less moisture, the air releases some of the moisture as precipatation.
urban population
percentage of the total population living in towns of over 2,000 people(cities and towns)
estuary
an area where a tide meets a river current
negative population growth
when the death rate exceeds the birth rate
arable
1/32
land
30
floodplain
low plain next to a river that is formed of river sediment and is subject to flooding
meander
winding path or course of a river
windward
on the side toward the wind
seacoast
land lying next to a sea or an ocean
divide
stretch of highland that seperates direction of river systems
river basin
area of land drained by a river
cultural convergence
occurs when skills,arts,ideas,habits,and institutions of one culture come in contact with those of another colture
drinkable
1/3200
mouth
place where a stream or river flows into a larger body of water
yellow river
china
headwaters
the sources of river waters
culture hearths
where civilazation begins and spread
nile river valley
egypt
slow growth
square like pyramid
habitable
1/8
mesa
broad,flat-topped landform with steep sides,smaller than a plateau
enthocentrism
belief in the superiority of one's own ethnic group
inhospitable
1/8
downstream
direction in which a river or stream flows form its source to its mouth
water
70
upstream
direction opposite the flow of a river(toward the source)
the pacific coast of US and the grand banks on the atlantic coast
are some of the most productive fishing areas in the world
arable land
land that is capable of growing crops
mesopotamia
tigris and euphrates-iraq
river
large natural stream of water that runs through the land
agricultural revolution/neolithic revolution
10,000 years ago humans began to settle and build permanent crops
civilization
highly organized,city based society with advanced knowledge of farming,trade,gov.,art,science
rapid growth pyramid
triangle shaped pyramid
productive
1/8
indus river
pakistan
population density
average number of people per square mile(kilometer in some nations)
topsoil
1/3200
un-productive
5/8
cultural diffusion
spreading of knowledge,skills,and ideas form one group or individual to another. ex:trade,migration,war
demography
study of human population statistics
tributary
small river or stream tat flows into a large river or stream(branch of a river)
other productive zones
3/32
ocean current
stream of either cold or warm water that moves in a definite direction through an ocean
population distribution
pattern of settlement. population density does not take into consideration uneven distribution of people
delta
alluvial deposit at a river's mouth that looks like the greek letter (triangle)
acculturation
adapting some traits form one other cultures into your coulture
source
place where a river or stream begins,usually in the highlands
doubling rate/time
projected number of years it will take for a population to double in size
isthmus
narrow stretch of land connecting 2 larger land areas
industrial revolution
late 1700's,industrialization and mass production. factories and machines replaced agriculture
major elements of culture
language #1,gov.,economics,social groups-family most important
mesoamerica
mexico
cataract
a large waterfall
non-arable
3/32
channel
wide strait or waterway between 2 landmasses that lie close to each other,deep part of a river or other waterway
death rate
the average number of deaths per 1,000 people per year

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