One very important application is: It makes it possible for us to see what's in front
of us as we move about, and thereby to avoid constantly bumping into stuff.
Laser light.
it is earth science because it is only used on earth making it earth science
It warms the earth, makes it light, and is used to collect energy.
In the book of Genesis. Genesis was written by Moses. on the first page where the creation of the earth was explained the word light is used when the Lord created day and night. He used the sun to light the earth by day and the moon and stars to light it at night.
To calculate how far away stars are from Earth.
light years
Yes, this is used to make estimates/It is called the Doppler effect
Light years are used to measure distance from Earth to distant stars and planets.
Visible Light is used to see colors on earth and to see period. For more uses of light go to ask.com.
To heat the earth. Also for solar powered objects.
Laser
No, the Earth is not a source of light itself. The Earth's primary source of light is the Sun, which emits light and energy that reaches the Earth and illuminates it. The Earth reflects some of this light, which is why we can see it.