Question

Sita wiped the leaves of the plants growing in her garden with oil to make them shiny . After a few days the leaves became yellow and started to dry. Why do you think this happened?

Answer 1

Due to lack of air and moisture, the leaves became yellow and then consequently dried.

The oil forms an opaque layer for the moisture which prevents the leaves even to respire and transpire.

Lack of respiration makes the leaves dry and when the water do not escape due to oil film, it became yellow.