The answer is ultra violet radiation. From the air
8 x 10^8 = 800,000,000
In Scientific Notation, your goal is to get your the number you're multiplying by 10 (8 in this case) to be between 0 and 10. Therefore, you would NOT have 80 x 10^7 because 80 is not between 0 and 10.
If you mean like electromagnetic waves then, Mico waves, UV rays, and infrared waves
A substance changes from liquid to gas
