Greenhouse gas is a term used for the gases which affect our atmosphere directly. These gases are useful to Earth because it allows the radiations to enter the Earth's atmosphere freely and warm the Earth's surface. The whole phenomena are of reflection, when the sunlight radiations hit the Earth's surface, some radiations are bounced back to space by the reflection process causing a warmly effect to Earth, due to this property of Greenhouse, and they are referred as Greenhouse gases. There are many greenhouse gases in our atmosphere, the most common gases among them are carbon dioxide (CO2), nitrous ...