As, light is scattered by the air molecules present in atmosphere and blue colour has shorter wavelength, so it is scattered most and the earth would appear blue.

For example, at sunrise and sunset, the distance between us and the Sun is greater. Therefore, the light has to travel the longest distance during these times.

Solution of Iodine is often used for testing the presence of starch in the food particles, as we know that. But, when iodine is added to starch, it turns blue-black. rice water it turns blue-black because it contains starch, hence ...