29 Sept 2020 (People & Environment and ICT) First Shift NTA UGC NET JRF Question paper, Answer key
1. In a polluted urban area, which one of the following has the highest concentration (ppv) in photochemical smog? 1. […]
1. In a polluted urban area, which one of the following has the highest concentration (ppv) in photochemical smog? 1. […]
1 In a polluted urban area, which one of the following has the highest concentration (ppv) in photochemical smog? 1.