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A periodic climate pattern that occurs across the tropical Pacific Ocean every five years.
Soil is the loose, uppermost, fertile layer of the Earth’s crust.
Evaporating surface water forms clouds of various shapes from which water falls back to the...
We can observe quite interesting astronomical phenomena when the Earth, the Sun and the Moon align.
The most important types of local winds are the sea-land breeze, the mountain-valley breeze as...
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
The Great ocean conveyor is a planet-wide system of ocean currents, which has a great influence...
Physical properties, as well as the flora and fauna of the ocean change with depth.