A scientist performs an experiment by placing petroleum jelly on under side of plant leaves. This blocks stomata. The plant continues to be watered and is located in a spot. What will the scientist observe?

The scientist will observe that the plant's leaves start to wilt and droop due to the blockage of stomata. Stomata are small openings present on the underside of plant leaves that allow for the exchange of gases (such as carbon dioxide and oxygen) and release of water vapor through a process called transpiration. By blocking the stomata with petroleum jelly, the plant is unable to release the water vapor effectively, leading to the accumulation of water inside the plant tissues and causing the leaves to wilt. Additionally, the blockage of stomata prevents the plant from taking in carbon dioxide for photosynthesis, further affecting its growth and overall health.