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Geography Theme 2- Physical processes and the relationship between people and the
environment

Weather and climate

Weather: Daily variation in the atmosphere
Rainfall and temperature make up weather
Climate: average conditions in the atmosphere over a long period of time
Wind direction/ force , sunshine, visibility, temperature, precipitation and atmospheric…

Page 2

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Geography Theme 2- Physical processes and the relationship between people and the
environment




Case Study

Brazilian climate

Altitude: have mountains in some areas- relief rainfall

Latitude: parts on equator

Prevailing wind: Over Atlantic Ocean picking up moisture

Ocean currents: ocean `conveyer belt' brings warm and cold currents.

Distance from sea:…

Page 3

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Geography Theme 2- Physical processes and the relationship between people and the
environment

3) Large clouds are 4) Any moister in the air 4) Warm air Is forced to
formed evaporates rise, further
4) Heavy rain storms condensation and rain
occur


Global pressure systems

Climate zones: Tropical, polar, desert, arid,…

Page 4

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Geography Theme 2- Physical processes and the relationship between people and the
environment

Fertile topsoil as burnt and into river- poor quality of water

Drinking water supplies reduced so hosepipe ban occurred

Livestock died due to heat crops failed

Some railway tracks buckled, underground- suffocating, roads melted, water level low.…

Page 5

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Geography Theme 2- Physical processes and the relationship between people and the
environment

Air rises faster and faster trying to fill low pressure by drawing more air

As the storm moves over ocean picks more warm air

Speed increase as more air is sucked in

Eye has calm winds surrounded…

Page 6

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Geography Theme 2- Physical processes and the relationship between people and the
environment

Droughts

Extended period of time during which an area receives less rain than normal.
Not actual figure but a relative one
People and ecosystems have to cope with much less than usual

What causes drought:

Longer period…

Page 7

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Geography Theme 2- Physical processes and the relationship between people and the
environment

Water surplus and deficit: Lesotho has plentiful water for the population. Gauteng has little.




How does the LHWP work?

Construction of 6 major dams

Country Advantage Disadvantage
Lesotho Provides work Lesotho struggles with sanitation and clean
Help…

Page 8

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Geography Theme 2- Physical processes and the relationship between people and the
environment

Not large enough to have negative impact on drainage basin= environmentally
sustainable
Techniques used:

Intermediate technology:

Large scale water transfer schemes not always used
NGOs and the government such as Water Aid set up small schemes



Vegetable…

Page 9

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Geography Theme 2- Physical processes and the relationship between people and the
environment




2) Air masses: large areas of same characteristics of temp, humidity and pressure




3) Ocean currents: constant circulation of warm water from tropics vice versa. Air masses
pick passing cold currents will be stable and little rain.…

Page 10

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Geography Theme 2- Physical processes and the relationship between people and the
environment




Biomes

Larger ecosystems. Large geographical area of distinctive plants and animals which are adapted to
that environment. Climate and geography determines type of biome of the region.

Biomes are large-scale ecosystems defined by abiotic (Non living) or…

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