C is better option.
Because if global warming occurs then presence of microbes will create more carbon dioxide means more temperature ..means it is worsening environment more...
Other options are extreme as well as not conveying what is in question stem
Posted from my mobile device
Because if global warming occurs then presence of microbes will create more carbon dioxide means more temperature ..means it is worsening environment more...
Other options are extreme as well as not conveying what is in question stem
Posted from my mobile device
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