Question

which correctly list the three gases that each make up less than 1 percent of earths atmosphere?
argon, water vapor, carbon dioxide
oxygen, argon, water vapor
nitrogen, oxygen, carbon dioxide
carbon dioxide, oxygen, argon

Explanation:

• Nitrogen makes up about 78% of Earth's atmosphere, oxygen about 21%.
• Argon is about 0.93%, water vapor varies (typically less than 1%), carbon dioxide is about 0.04%.

Answer:

argon, water vapor, carbon dioxide