The earth consists of 30%
land and 70% water. Man has ventured into the seas in search of oil,
fish and treasure yet much of the world`s oceans remains unexplored.
Very little is known about
the deeper parts of the oceans and the abbasal plains of the sea floor
where high pressures and no light make it difficult for man to
survive. Scientists, however are continuously developing new
technologies to enable man to peak into this unknown world.