Select the odd one out (soft horns, ear plugs, silencers, loudspeakers)

soft horns

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ear plugs

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silencers

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loudspeakers

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Solution

The correct option is D loudspeakers
Except loud speaker all are preventive measures of noise pollution while loud speaker creates noise pollution

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Similar questions

The odd one the following: soft horns; ear plugs; silencers; loud speakers

Automobiles are fitted with silencers and soft horns:

Ear plugs should be used by:

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