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ASMO Science Olympiad 2019 — Level 1 (Years 3 & 4) — State Level Question 25

ASMO Science · ASMO Science Olympiad 2019 — Level 1 (Years 3 & 4) — State Level

Question 25

Which of the following is the natural method to control pests at a farm without polluting the environment?

Question illustration
  1. Vector control
  2. Fertiliser control
  3. Biological control
  4. Insecticide control
  5. None of the above