UPTET Paper 2 Social Studies Model Test 5

Concept:Greenhouse gases trap heat in the Earth's atmosphere. Carbon monoxide (CO) does not have this property.Explanation:The major greenhouse gases are carbon dioxide ($CO_{2}$), methane ($CH_{4}$), and nitrous oxide ($N_{2}O$).$CO_{2}$ is released from burning fossil fuels and is absorbed by plants.$CH_{4}$ comes from livestock, agriculture, and landfills.$N_{2}O$ is produced by fertilizers and combustion.Carbon monoxide (CO) forms from incomplete combustion of fuels. It is a toxic gas but does not absorb and re-radiate infrared radiation effectively. Hence, CO is not classified as a greenhouse gas.Answer:C. CO