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ASMO Science 2022 - Level 2 (Grade 5-6) - School Round Question 9

ASMO Science · ASMO Science 2022 - Level 2 (Grade 5-6) - School Round

Question 9

Which of the following methods does not help to reduce air pollution?
  1. Build tall chimneys for factories
  2. Use catalytic converters on motor vehicles
  3. Use animals to kill pests instead of pesticides
  4. Burn rubbish in big open areas
  5. None of the above