Question

Which of these gases is the most abundant in earth's atmosphere atmosphere

Answer 1

nitrogen is the most abundant gas in the atmosphere. it is 78%.

Answer 2

Nitrogen

Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N2) and about 21% oxygen (O2). Argon, carbon dioxide (CO2), and many other gases are also present in much lower amounts; each makes up less than 1% of the atmosphere's mixture of gases.