18.Consider the following statements about Nitrogen Dioxide: It is a greenhouse gas as per Kyoto protocol It is a pollutant considered for measuring National Air Quality Index Nitrogen dioxide is a colourless and odourless gas Which of the above statements is/are correct? [A] 1 & 2 Only [B] 2 Only [C] 2 & 3 Only [D] 1, 2 & 3 Show Answer
Third statement is incorrect because nitrogen dioxide is a reddish-brown gas with a pungent and irritating odour. The Kyoto protocol covers six gases carbon- ..
