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Extreme Climates


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Adapt
Adapting to a climate of increased greenhouse gases e.g. using air conditioning building the Thames Barrier
Boreholes
A deep hole drilled in the ground to find water
Biodiversity
The range of plants and animals
Conservation farming
A method of farming to reduce soil erosion and drought
Cultural Dilution
The weakening of traditional cultures due to the introduction of western beliefs and languages.
Desert
An environment that receives less than 250mm of rainfall each year.
Diguettes
A line of stones laid along the contours of gently sloping farmland. The aim of them is to form barriers to soil erosion and increase soil fertility.
Drought
avoidance Plants that survive one season have a rapid life cycle and die after seeding (avoiding drought conditions).
Drought
tolerance Plants that have mechanisms to survive drought e.g. extensive deep roots which penetrate soil and rock to get at underground water
Drylands
classified as environments with an annual rainfall of between 250mm and 500mm
El Nino
A reversal of normal air currents across Australia and the Pacific Ocean. It brings drought to Australia every 5-7 years.
Fauna
Animals
Flora
Plants
Hunting and Gathering
Finding edible plants and animals – traditionally part of the Aboriginal lifestyle.
Indigenous population
Native population to the area
Kyoto Summit
A global summit held in 1997 to cut greenhouse gas emissions by 5.2% by 2012.
Mitigate
Reduce climate change by reducing greenhouse emissions
Succulence
Plants that store water in their fleshy leaves stems or roots e.g. Australian Eucalypt trees
Windpumps
Create pressure to draw water from aquifers to the surface