Other materials that are not combustible or only very slightly combustible under normal conditions can become very combustible and hazardous when oxygen levels are high. Also, many things will be hot or will smolder when deprived of air and will suddenly burst into flames when exposed to the oxygen that's in our air. Since oxygen is required for the burning we see, the sudden combustion in these examples would be more dangerous if the oxygen concentration were higher.
the most second abundant gas is oxygen
oxygen
Nitrogen is the least abundant element in the atmosphere of the Earth. The most abundant element in the atmosphere of the Earth is oxygen.
Nitrogen, Oxygen, Argon & Carbon Dioxide.
oxygen --- I started to leave this because it is the wrong answer.
the most second abundant gas is oxygen
oxygen
Oxygen
The most abundant gases are nitrogen and oxygen in the Earth atmosphere.
Nitrogen is more abundant; our atmosphere is 78% Nitrogen.
Nitrogen is the most abundant element in the earth's atmosphere.
Oxygen, which is about 21% while nitrogen is the most abundant at 78%.
oxygen and nitrogen
Nitrogen and Oxygen
Nitrogen and Oxygen
Oxygen
oxygen