Why is the sky blue? Why is the ocean blue? The answers aren’t the same.
The sky is blue. The oceans are blue. While science can explain them both, the reasons for each are entirely different. — If you’ve ever been curious about the world you live in, you’ve probably wondered why the sky is blue. The incorrect answers that people often give in response include: that sunlight has a blue tint, that oxygen itself is a blue-colored gas, or that the sky reflects the oceans.