Why is the sea blue and the waves in the sea white?

Let me ask the landlord first. Do you know why the sky is blue?

Because we all know that the naked eye can only see visible light, and white light is decomposed into seven colors: red, orange, yellow, green, blue and purple through a prism. When they enter the atmosphere, they are absorbed or reflected by dust or air (nitrogen and oxygen molecules), leaving only blue light, so they see blue.

The sky reflected by the sea is blue, it is dark and the sea is black.

The spray is uneven, it is not as smooth as the sea, it does not reflect light specularly, but only diffusely, and only sees the true color of water, white.