Question

Priya wants to see the apples that are kept cold will rot or stay edible. So she places the apple in the refrigerator and records the date. What she should use as a control?

Answer 1

Food preservation:

1. To see the rotting of apple, Priya kept one apple in the cold.
2. To see the difference, Priya should keep another apple in a warm place for the same length of time.
3. Apple placed in the warm place will act as control.