Answer:
1.Pollution. ...
Global warming. ...
Overpopulation. ...
Waste disposal. ...
Ocean acidification. ...
Loss of biodiversity. ...
Deforestation. ...
Ozone layer depletion.
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2a,When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change.
b
The primary effect of chemical industry on environment and on the lifestyle as well, is due to the pollution, arising from the industrial activities, resulting in gas emissions, wastewater polluting the natural ponds and underground water, solid and slurry waste, polluting the soil and underground water, if not treated ...