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Question

Which of these are measures that can be taken to control noise pollution?
  1. Use of sound-proof walls in factories
  2. Restricting the unnecessary use of sirens, horns and loud speakers
  3. Placing airports close to residential areas
  4. Placing industries far away from residential areas


Solution

The correct options are
A Use of sound-proof walls in factories
B Restricting the unnecessary use of sirens, horns and loud speakers
D Placing industries far away from residential areas
Measures to control noise pollution are: Industries must be located away from residential areas, construction of sound-proof walls in factories and restricting the unnecessary use of sirens, horns and loud speakers. Also, airports must be located far away from residential zones, protective instruments should be used by the workers in industries, noise producing vehicles must be checked, etc.

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