General Knowledge :: Chemistry
- Which one of the following group of gases contributes to the 'Green House Effect'?
- Black lung disease occurs in people working in
- The least preferred technique in the disposal of Municipal Solid Waste is
- Which one of the following was used as a chemical weapon in the first world war ?
- The depletion of ozone layer is due to
- Ozone depletion in the atmosphere is mainly caused by
- Which of the following is not a gaseous air pollutant?
- Which of the following is ozone depleting pesticide ?
- Threshold limit value of copper in the atmospheric air is
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