Which atmospheric gas is primary ingredient of photochemical smog?
Ozone
Ground-level ozone is a major component of photochemical smog. It forms through sunlight-driven reactions involving nitrogen oxides and volatile organic compounds, so it is a secondary pollutant even though it is a principal smog ingredient.
Which gas shields the surface of the earth from ultraviolet radiation from the sun?
Which event is marked as an Intangible Cultural Heritage of Humanity by UNESCO?
Who has been conferred with the rank of the Commander of the Order of the British Empire in 2018?
Who directead the film ‘Bhuvan Shome’?
The book “In my mother’s house” is written by _______