carbon dioxide
Nitrogen gas makes up about 78% of Earth's atmosphere.
Oxygen gas makes up just over 20% of the air around us.
Nitrogen is the gas that makes up about 78% of the Earth's atmosphere.
Oxygen is a non-metal gas that makes up about 20% of normal air.
Nitrogen gas makes up approximately 78% of Earth's atmosphere.
Oxygen
Nitrogen.
Nitrogen gas makes up about 78% of Earth's atmosphere.
Oxygen gas makes up just over 20% of the air around us.
Nitrogen is the gas that makes up about 78% of the Earth's atmosphere.
Oxygen is the gas that accounts for about 20 percent of Earth's atmosphere.
Oxygen is a non-metal gas that makes up about 20% of normal air.
Nitrogen gas makes up approximately 78% of Earth's atmosphere.
Argon is the unreactive gas that makes up 1 percent of the Earth's atmosphere. It is a noble gas and is commonly used in applications where an inert atmosphere is required, such as in light bulbs and welding.
Nitrogen makes up about 79% of the atmosphere.
Nitrogen which makes up about 78 percent of the atmosphere.
78%