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Cold and warm fronts are formed where bodies of cold and warm air meet.
warm front, cold front, weather front, weather, front line, cloud formation, cloud, precipitation, rainstorm, hail, storm, wind, atmosphere, air, air pressure, nature, geography
Evaporating surface water forms clouds of various shapes from which water falls back to the surface as precipitation.
A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.
Human activity increases the greenhouse effect and leads to global warming.
Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
This animation demonstrates instruments used to examine atmospheric phenomena.
Cyclones are large areas of circulating air with clouds and precipitation being formed in its centre.
Short-lived but extremely powerful tornadoes can cause a great deal of damage.
Cyclones are large air masses with winds spiralling inwards around a low-pressure centre, and carry clouds and precipitation.