“Green house effect” is due to

The "greenhouse effect" is due to the presence of certain gases in the Earth's atmosphere, known as greenhouse gases, that trap heat from the Sun and warm the planet. These gases include carbon dioxide (CO₂), methane (CH₄), water vapor (H₂O), nitrous oxide (N₂O), and some others. Here's how the greenhouse effect works:

Sunlight, which contains a wide spectrum of electromagnetic radiation, reaches the Earth's surface. Some of this sunlight is absorbed by the surface, warming it up.

The Earth's surface then emits infrared radiation (heat) in response to being warmed by the sunlight.

Greenhouse gases in the atmosphere absorb and re-emit some of this infrared radiation. This process traps heat in the atmosphere, preventing it from escaping directly into space.

As a result, the lower atmosphere and the Earth's surface become warmer than they would be without the presence of greenhouse gases, creating the familiar "greenhouse effect."