Green house gas

[Blackjane]

Hello, I heard this word "Green house gas" what's this and why it is called so?

[Michelle Goes Green]

Hello, I heard this word "Green house gas" what's this and why it is called so?

Here's a good definition courtesy of Wikipedia:

"Greenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. Common greenhouse gases in the Earth's atmosphere include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In our solar system, the atmospheres of Venus, Mars and Titan also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth; without them, Earth's surface would be on average about 33°C (59°F) colder than at present."