BBC - Earth The Biography Part4: Oceans (2007) UNRATED BRRip 720p x264 AAC-DiVERSiTY.rar


The oceans cover 3/4 of earth's surface and make it viable. Their brute, eroding, tidal (lunar/solar gravity-powered) surf-force helps physically shape the planet, especially the coast, and powers currents, which are vital for climate in interaction with winds. The oceans' own shape is determined by the tectonic drift of the continents. Their micro-organisms, phytoplankton, are crucial in starting the food-cycle of life trough photo-synthesis and generation of oxygen...