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Artesian aquifer
An artesian aquifer is a confined aquifer whose water is pressurized. Water will thus flow out of an artesian well without ... > more -
El Nino-Southern Oscillation
El Niño-Southern Oscillation (ENSO) is a global coupled ocean-atmosphere phenomenon. The Pacific ocean signatures, El Niño and La Niña (also written in English as El Nino and La ... > more -
Water resources
Water resources are sources of water that are useful or potentially useful to humans. It is important because it is needed for life to exist. Many uses of water include agricultural, industrial, ... > more -
Camouflage
Camouflage is the method which allows an otherwise visible organism or object to remain indiscernible from the surrounding environment. Examples include a tiger's stripes and the battledress of a ... > more -
Coastal management
Coastal management or coastal defence is used throughout the world for many different purposes, but predominantly to reduce coastal erosion and ... > more -
Dust devil
A dust devil or whirlwind is either a large rotating updraft, anywhere from 1000 meters high or more and tens of meters in diameter, to a small vortex a few meters high. In Australia, they are ... > more -
Power station
A power station or power plant is a facility for the generation of electric power. At the centre of nearly all power stations is a generator, a rotating machine that converts mechanical energy into ... > more -
Volcanic cone
Volcanic cones are among the simplest volcano formations. They are built by fragments (called ejecta) thrown up (ejected) from a volcanic vent, piling up around the vent in the shape of a cone with a ... > more
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