Well the dark is 'dark' because no light is let in. Places like an enclosed area with walls and ceilings also no lights are dark. It is dark because no light can get through the enclosure you are in.
The dark pigment in both eyes and skin serve the same purpose: protection from ultraviolet (UV) rays. People with dark skin usually have ancestry in tropical or subtropical latitudes, where UV rays...
Dark energy is the force that expands the universe. Dark matter is the force that keeps everything from crashing into one an other. Dark matter is what keeps galaxies together for example if you pour...
i don't whant to be mean but this is not a real question because dark can just go and go ect........ Dark is when you cannot see your hand in front of your face.