It is very important for us to know as to why the ocean is blue or green or why it appears so if it is transparent. Therefore, we can use the scientific method to find out as to how the color of the ocean (blue or green) is such. Therefore, we must also understand the current reason available for the ocean's color and check it with the scientific method. It is said that the sunlight which falls on the ocean is white light which has a rainbow spectrum of colors including the violet, indigo, ...