What kind of light source is this?
It's a natural source. Stars
What kind of light source is this?
It's a natural source. Fire.
What kind of light source is this?
It's a natural source. Fireflies
What kind of light source is this?
It's an artificial light source. Light bulb.
What kind of light source is this?
It's an artificial source. Lighthouse
What kind of light source is this?
It's an artificial source. Torch
What kind of light source is this?
It's an artificial source. Streetlight.
What kind of light source is this?
It is an artificial source. Firework
What kind of light source is this?
It's a natural source. Jellyfish
What kind of light source is this?
It's a natural source. The Sun
What kind of light source is this?
It's an artificial source. Lamp.
What kind of light source is this?
It is a natural source. Car light.
What kind of light source is this?
It's an artificial source. Candle
What kind of light source is this?
It's a natural source. Lightning