Q. Which city has the clean and efficient underground railway?

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Q. In which country, the switch from coal fired to natural gas fired power station because the sulphur content is low?

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Q. What reduces the nitrogen oxide from the car?

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Q. What are flue Gases?

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Q. Why most of the power station are not using selective catalytic reduction?

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Q. Why CBG is good energy?

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Q. How sulphur is scrubbed out from flue gases in the coal fired power plants?

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Q. Methane is emitted through human activities, such as

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Q. Occurance of 15% methane in atmosphere causes

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Q. In 1992 and 1993 what was cause of methane concentration downfall in atmosphere?

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Q. Carbondioxide has a lifespan of about

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Q. Methane' is produced fron landfill sites due to

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Q. According to a sharp contrast, methane is considered as a less important greenhouse gas than

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Q. Methane' is emitted through leakages in the

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Q. What is lifespan of 'methane' in atmosphere?

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Q. Methane' has a shorter lifespan in the

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Q. Which GHGs is known as a laughing Gas?

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Q. Nitrous oxide' is used as

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Q. Nitrous oxide emission from human activities, included

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Q. What is an annual rising percentage of nitrous oxide?

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