Answer:
1.Light
Light travels as a wave. But unlike sound waves or water waves, it does not need any matter or material to carry its energy along. This means that light can travel through a vacuum? a completely airless space.
2.The sun
The sun is the main source of heat, warmth, and light for organisms living on Earth.
3.Sun,Stars,Candle
There are natural and artificial light sources. A few examples of natural light sources include the Sun, stars and candles. A few examples of artificial light sources include light bulbs, lamp posts and televisions.
4.C
Explanation:
I hope it's helpful to you
PAKI BRAINLIEST PO
