UNIVERSE When we look at the sky and observe a blue colour, it is not the colour of the sky we see, rather the blue colour components of sunlight.
Although people often describe the Sun as yellow or orange, its light
Why is the sky blue?
5 Best: Earth’s Spongiest Cities
1 Auckland, New Zealand, receives an average of 1210mm rainfall annually, but lots of green vegetation helps make the city spongy. Not only is the city rich in parks, many houses have large gardens, so a high percentage of the city absorbs water. Yet