people use light in tunnels, cars, houses, sheds, camps, and schools
people use light for many things
People use light bulb for luminescence in homes. It is a substance which provides light to homes.
so we can see and have light
For light.
people use lanterns for light
lanterns and candles
Because it is much easier to use than heavy.
they use ruby's
A small, portable light source.
Why do you think? Light bulbs are cheaper, produce more light, don't require matches to light and don't produce waste products such as carbon dioxide. The discovery of electricity made light bulbs possible.
Yes. Light pollution is when ANY KIND OF LIGHT disrupts people, or disrupts the eco-system.
everyone