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Exam
· Key words: HOLISTIC & COMPLEX
Taking into A topic that has
account the many
complete issue ­ interconnected
social, economic, parts that can
environmental make it hard to
and political. deal with.…read more

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Definition of DESERTS
· P=Total precipitation (actual rainfall)
· E= Total evapotranspiration (how much rain is
actually evaporated)
· PE=Potential evapotranspiration
· Receives less then 250mm precipitation per
year.
· PE is < (greater then) P.…read more

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Why the deserts are located away from
the equator…read more

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HADLEY CELL...
Trade winds cause convection currents!!
Trade winds
E>P
East to West HIGH PRESSURE
Inter Tropical Convergence S
Zone (ITCZ) P>E U
N
LOW PRESSURE
E>P
HIGH PRESSURE
HIGH PRESSURE- Sinking air- No precipitation
LOW PRESSURE- Rising air- Precipitation…read more

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HADLEY CELL. (CNT)
Hadley cell Ferral cell Polar cell
Condensation
Evapotranspiration
P>E- (RAIN)
E<P DESERT
P>E SNOW
precipitation
Evaporation
EARTH
DRY
Through flow WET
DRY…read more

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