What is the most abundant gas in the atmosphere?

Feb 23, 2023 ... Water vapour is the most abundant greenhouse gas. It increases as the earth's atmosphere warms but unlike CO2, which can remain in the ... Water vapor is the most abundant greenhouse gas. Most scientists believe ... What are the greenhouse gas and air pollutant emissions factors for fuels and ... Apr 27, 2023 ... The most abundant gas in the air is nitrogen (N2), which represents approximately 78% of the Earth's atmosphere. Oxygen (O2) is the second ... Nov 5, 2012 ... The next four most abundant gases are argon, nitrogen, oxygen and carbon monoxide. Researchers will use SAM repeatedly throughout ... Nitrogen is the most abundant in the atmosphere amounting to about 78%. The seconds most abundant is oxygen at approximately 21%. Jun 20, 2009 ... The minimum quantities of the nine most abundant, isolated, atmospheric gases that are detectable with a refractometer are calculated. Feb 7, 2021 ... Nitrogen (78.08%) · Oxygen (20.95%) · Argon (0.934%) · Carbon Dioxide (415ppm) · Neon (18.18ppm) · Helium (5240ppb) · Methane (1187ppb) ... Jul 30, 2013 ... Nitrogen is the most abundant element in our planet's atmosphere. Approximately 78% of the atmosphere is made up of nitrogen gas (N 2 ) . The atmosphere is the layer of gases that envelopes a planet. Surprisingly, oxygen isn't the most abundant gas in our planet's atmosphere. Nitrogen is the most abundant gas in the Earth's atmosphere. Oxygen is the second most abundant gas. Both of these gases are made up of two atoms. The ...