Choose the CORRECT statement from the following.

Graph represents the measurement of pH in plant leaves during 36 hrs. of photosynthetic activity. It indicates that acid products were being:

Given below is a diagram of the stomatal apparatus. Match the labels with the corresponding names of the compounds. 

Choose the correct combination.

Given below are two statements:

Statement I: The forces generated by transpiration can create pressures sufficient to lift a xylem sized column of water over 130 metres high.
Statement II: Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.

In the light of the above statements, choose the most appropriate answer from the options given below:

Study the diagram and the list given below.

i) Chloroplast

ii) Epidermal cell

iii) Guard cell

iv) Subsidiary cell

v) Stomatal pore

The correct match is