📚 Practice Mode

Food poisoning and food preservation methods - class-X

Learn at your own pace with hints and detailed explanations

1 / 91
Multiple Choice

Apples are generally wrapped in waxed paper to

  1. Prevent sunlight for changing its colour
  2. Prevent aerobic respiration by checking the entry of $O _2$
  3. Prevent ethylene formation due to injury
  4. Make the apples look attractive
Change Mode