General Knowledge :: Chemistry
- Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ?
- Nitrogen fixation is a process of
- The lowest layer of earth's atmosphere is
- Earth’s atmosphere is an envelope of gases extending to a height of
- Nitrification is the biological process of converting
- The greenhouse effect is caused by the higher level of which gas in the atmosphere ?
- The atmospheric gas that is mainly responsible for green house effect :
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