Photochemical smog formed in congested metropolitan cities mainly consists of
- AOzone,peroxyacetyl nitrate and $NO_x$
- BSmoke,peroxyacetyl nitrate and $SO_2$
- CHydrocarbon,$SO_2$ and $CO_2$
- DHydrocarbon,ozone and $SO_2$
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The expanded form of $BOD$ is:
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Which one of the following represents natural pollutants?
Given below are two statements:
Statement $I$: Electrostatic precipitator is most widely used in thermal power plants.
Statement $II$: Electrostatic precipitator in thermal power plants removes ionising radiations.
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Statement $II$: Electrostatic precipitator in thermal power plants removes ionising radiations.
In the light of the above statements,choose the most appropriate answer from the options given below:
MediumNEET 2023
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