I have the same question right now and i think that it is D
Particles below the surface of a liquid
Answer:
Brackett Series (n = 4)
Explanation:
The least energetic line of Hydrogen atom lies in <em>Brackett Series </em>when n = 4 because these are least energetic, have longer wavelengths and lies in Infrared region of spectrum. No traces of <em>Pfund series </em>are formed by H=atoms.
The ocean hold 97 percent of earths water.
sorry I don't know just kidding I know just kidding I don't know