Make the sentence fluent: The emission of harmful pollutants into the air atmosphere by motorcars and factories has affected human health and this need to be rectified.
The emission of harmful substances into the air by the burning of fossil fuels is a major cause of air pollution.
The emission of harmful substances into the air by the burning of fossil fuels is a major cause of air pollution.
The emission of harmful substances into the air by the burning of fossil fuels is a major cause of air pollution.
The emission of harmful substances into the air by the burning of fossil fuels is a major cause of air pollution.
The emission of harmful substances into the air
The emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the emission of harmful substances into the air by the