Answer the following questions.a) Write a short note on global warming.b) Name two common air pollutants.


a) Global warming is the long-term warming of Earth’s climate system that has been seen from the pre-industrial period (between 1850 and 1900) as a result of human activity, especially fuel burning, which increases heat-trapping greenhouse emission levels in the atmosphere.
b) Particulate matter and sulphur and nitrogen oxides are two prevalent air contaminants.
Because boron may create BF4, but not BF6, Carbon dioxide, water vapour, oxides of nitrogen, methane, ozone, and chlorofluorocarbons are the gases that cause global warming. Because they lack d-orbitals, their maximum covalency is four.
Final Answer :
The biggest source of CO2 emissions – the exploitation and burning of fossil fuels – is also a major source of air pollution, contributing to climate change.