The atmosphere contains a small amount of krypton.
from kryptos, meaning "hidden" -->From a liter of lquid air, William Ramsay and Morris William Traver (the discoverers of krypton) distilled Nitrogen, Oxygen, and Argon. On May 30, 1898, they...
Krypton is not in the human body, but in the atmosphere in very small amounts.
yes they are. they help spread pollen throughout this world.
Anything that will benefit you can be considered helpful.