Oceanography may be one of the newest fields of science, but its roots extend back several tens of thousands of years when people began to venture from their coastlines in rafts. These first seafaring explorers, navigators and oceanographers began to pay attention to the ocean in many ways. Oceanographers study every different aspect of the ocean, such as the chemistry of the of ocean water, the geology associated with the ocean, the physical movements of the ocean water, or even the life that calls the ocean its home. This book is written in simple language covering all disciplines and branches of marine sciences like marine geology, meteorology, marine environment, marine ecology, marine biology, marine chemistry, marine physics, marine geophysics and fluid mechanics, etc.