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Which is the most widely used technique for removing particulate matter?(a) Loudspeakers(b) Growing trees(c) Electrostatic precipitator(d) MagnetsThis question was posed to me in examination.My doubt stems from Environmental Issues topic in chapter Environmental Issues of Biology – Class 12

Answer»

The correct option is (c) Electrostatic precipitator

Easy explanation: The electrostatic precipitator is the most widely USED TECHNIQUE for REMOVING particulate matter as it removes the 99 percent particulate matter present in the exhaust of various industries. It has electrode wires that release electrons that help in attracting the CHARGED dust particles.



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