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| 4769452254 | Carbon Dioxide | CO2 <1% of Troposphere (345 ppmv) Essential gas for photosynthesis 6CO2 +6H20 ->C6H12O6 + 6O2, major gas involved in global warming, produced by burning of fossil fuels Greenhouse Gas | 0 | |
| 4769452255 | Ozone | O3 <1% of Troposphere (10 ppmv) keeps out excess amounts of UVB, holes in the ozone layer lead to temp change Greenhouse Gas | 1 | |
| 4769452256 | Carbon Monoxide | CO <1% of Troposphere (70 ppbv) reacts to form carbon dioxide and later methane, causes poisoning Weak/Indirect Greenhouse Gas (short-lived in atmosphere due to reactivity & solubility) | 2 | |
| 4769452257 | Methane | CH4 <1% of Troposphere (1.6 ppmv) effectively absorbs heat in the atmosphere, disastrous to the environment Greenhouse Gas | 3 | |
| 4769452258 | Radon | Rn <1% of Troposphere largest source of natural radiation, decay materials attach to small particles in the air and water, polluting it Not a Greenhouse Gas | 4 | |
| 4769452259 | Sulfur Oxides | SOx <1% of Troposphere caused by burning sulfur in fuel, causes acid rain Indirect/Weak Greenhouse Gas (SO2) | 5 | |
| 4769452260 | Nitrogen Oxides | NOx <1% of Troposphere produced by cars and power plants, produces acid rain and excessive algal blooms which depletes oxygen in lakes Indirect/Weak Greenhouse Gas | 6 | |
| 4769452261 | Nitrogen Gas | N2 78% of Troposphere essential gas used in fertilizers, formed during chemical production to promote growth and provides nutrients to plants Not a Greenhouse Gas | 7 | |
| 4769452262 | Oxygen Gas | O2 21% of Troposphere given off by plants and used by humans in cellular respiration, essential to combustion Not a Greenhouse Gas | 8 | |
| 4769452263 | Argon Gas | Ar 0.93% of Troposphere no known effects to enviro, inert gas Not a Greenhouse Gas | 9 | |
| 4769452264 | Water Vapor | H2O <3% of Troposphere produces clouds and rain, provides moisture, traps heat naturally Greenhouse Gas | 10 |
