Question

Why is olive oil used in the experiment to demonstrate absorption in plants?

• A. To prevent transpiration.
• B. To prevent evaporation.
• C. To prevent loss of oxygen.
• D. None of the above

Answer 1

The correct option is B

To prevent evaporation.

A few drops of olive oil is poured on the water surface because it will form a layer over the water surface and prevents the loss of water due to evaporation.