• question_answer According to the newly amended Kyoto Protocol, which among the followings are considered as Greenhouse Gases?                                                                     1. Carbon dioxide $(C{{O}_{2}})$ 2. Methane$(C{{H}_{4}})$ 3. Nitrous oxide$({{N}_{2}}O)$ 4. Hydrofluoro carbons(HFCs) 5. Perfluoro carbons(PFCs) 6. Sulphur hexafluoride$(S{{F}_{6}})$ 7. Nitrogen trifluoride$(N{{F}_{3}})$ 8. Sulphur dioxide $(S{{O}_{2}})$ Select the correct answer using the codes given below.                                     A)  1, 2, 3 and 8     B)         4, 5, 6 and 8        C)  1, 2, 3, 4, 5, 6 and 7                  D)  All of these

[c] Greenhouse Gases or GHG in Annex A to the protocol now include 7 GHGs in the list. They are $(C{{O}_{2}})$$(C{{H}_{4}})$$({{N}_{2}}O)$HFCs, PFCs,$(S{{F}_{6}})$and $(N{{F}_{3}})$  Nitrogen trifluoride is the last one to be included in the list. It is mostly used in electronics industry during various processes including plasma etching is a process that is used to fabricates ICs, cleaning silicon, chips, manufacture of LCD panel. It is highly effective in trapping atmospheric heat second only to Sulphur hexafluoride $(S{{F}_{6}})$.