Why does the ocean appear blue in color? It is absorbing blue light. It is diffracting blue light. It is reflecting blue light. It is refracting blue light.

it is reflecting blue light

The red, yellow, and green wavelengths of sunlight are absorbed by water molecules in the ocean. When sunlight hits the ocean, some of the light is reflected back directly but most of it penetrates the ocean surface and interacts with the water molecules that it encounters.