question_answer 79)

  Leaves of a healthy potted plant were coated with Vaseline- Will this plant remain healthy for long? Give reasons for your answer.

Answer:

                  The plant will not remain healthy as layer of Vaseline 'would make an impervious layer on the leaves. This will adversely effect the plant because (a)Plant will not get oxygen for respiration. (b) It will not get carbon dioxide for photosynthesis, (c) Upward movement of water and minerals would be hampered due to lack of transpiration.