Question

Give a geographical reason for the following:

From space Earth looks blue.

Answer 1

From space, Earth looks blue because about 70% of its surface is covered by water, primarily in the form of oceans. Water absorbs sunlight and reflects the blue light wavelengths, giving Earth its characteristic blue appearance when viewed from space. The reflection and scattering of light by the atmosphere also contribute to this blue color, especially in regions where the oceans are vast and uninterrupted.