Argon makes up 0.93% of the earth's atmosphere, making it the third most abundant gas. First suspected to be present in air by Henry Cavendish in 1785 and isolated by Lord Rayleigh and Sir William Ramsay in 1894. It is the first of the noble gases to be discovered and it is named from a Greek word meaning inactive or lazy
Nitrogen makes up 78% of the Earth's atmosphere. Oxygen makes up about 21%.
Nitrogen
The gas that makes up 93% of Earth's atmosphere is nitrogen. Oxygen is the second most abundant gas, making up around 21%.
The atmosphere of Earth is roughly 78% made of nitrogen.
Carbon dioxide makes up the majority of the Martian atmosphere, accounting for about 95% of the gases present.
The gas that makes up 21% of Earth's atmosphere is oxygen.
Oxygen is the gas that makes up the second most volume in the atmosphere, after nitrogen.
Nitrogen makes up about 79% of the atmosphere.
Nitrogen makes up 78% of the Earth's atmosphere. Oxygen makes up about 21%.
Nitrogen is the gas that makes up the majority of Earth's atmosphere, comprising about 78% of the air we breathe.
What gas makes up the majority of the Earth's atmosphere
oxygen
Nitrogen
Nitrogen
The gas that makes up 93% of Earth's atmosphere is nitrogen. Oxygen is the second most abundant gas, making up around 21%.
Oxygen makes up approximately one-fifth of Earth's atmosphere.
The gas that makes up about 78% of Earth's atmosphere is nitrogen. Oxygen is the next most abundant gas, making up about 21% of the atmosphere.