Oceans have significant importance. Entertainment, sight – seeing, water sports, swimming, sailing, etc. are done through them. Oceans have a profound impact on human civilization. The natural source of rainfall on continents is the ocean. Oceans provide us various types of resources and these are the most economical means of transportation. In addition to these, oceans are the controllers of our climate. Oceans are called the food reserves of the future which shows their importance.