Question

why co2 is called Greenhouse gas​

Answer 1

Those gas molecules in the Earth's atmosphere with three or more atoms are called "greenhouse gases" because they can capture outgoing infrared energy from the Earth, thereby warming the planet. The greenhouse gases include water vapor with three atoms (H2O), ozone (O3), carbon dioxide (CO2), and methane (CH4).

Answer 2

As they can capture outgoing infrared energy from the earth, which leads to warming.so that co2 is called as green house gas