Which of the following noble gases is commonly found in the atmosphere?
Answer Details
Among the options listed, the noble gas commonly found in the atmosphere is Argon. Argon makes up approximately 0.9% of the Earth's atmosphere and is the third most abundant gas after nitrogen and oxygen. Neon and helium are also noble gases, but they are not commonly found in the atmosphere because they are both lighter than air and tend to escape to the upper atmosphere. Xenon, on the other hand, is a rare gas and only exists in trace amounts in the atmosphere.