The answer is 2%..........
The daytime sky<span> is blue because light from the nearby Sun hits molecules in the Earth's atmosphere and scatters off in all directions. ... At </span>night<span>, when that part of Earth is facing away from the Sun, the sky looks </span>black<span> because there is no nearby bright source of light, like the Sun, to be scattered.</span>
It can tell you how land masses are connected