Children's Encyclopedia "Seas and Oceans"

There are almost twice as much seas and oceans on the surface of the Earth than land. Their role in the life of the planet is extremely great. It was in sea water that life originated, there began the evolution of living creatures, which then went to land and mastered its open spaces. Since ancient times, humanity is firmly connected with the ocean: it serves as a source of food, minerals, the sea routes connect countries and continents among themselves. Finally, the climate of the Earth directly depends on the oceans and seas. In this encyclopedia, the reader will get acquainted with the whole variety of oceans and seas, with the properties of sea water, winds and currents, the structure of the seabed and islands, their rich animal world and other interesting facts.