Which of the following gases shields the surface of earth from ultraviolet (UV) radiation from the sun?

Ozone

The correct answer is Option (2) → Ozone

The gas that shields the surface of the Earth from ultraviolet (UV) radiation from the sun is ozone (O3). The ozone layer in the Earth's stratosphere absorbs a significant portion of the sun's harmful UV radiation, protecting life on Earth from its damaging effects.