By which process is water lost from the plants in the form of water droplets?

Observe the diagram and answer the following:
$(a)$ Identify the types of guard cells shown in $(i)$ and $(ii)$.
$(b)$ Which of these types is found in monocots and which in dicots?

What happens if a plant in a potometer is kept under a fan or in bright light? The bubble of the potometer would:

Stomata open when guard cells are

Concentration of $CO_2$ from nature which is able to induce closure of stomata is

Read the following statements carefully and choose the right answer from the codes given below:
$I$. $PMA$ and silicon oil of low viscosity are considered as antitranspirants.
$II$. $BAP$,$NAA$,and cobalt chloride are also used as antitranspirants.
$III$. Abscisic acid $(ABA)$ affects the mechanism of opening and closing of stomata.
$IV$. Starch of guard cells is converted into $PEP$ (phosphoenolpyruvate) ions by the process of hydrolysis.
$V$. Potometer works on the principle of potential difference between the tip of the tube and that of the plant.
$VI$. Transpiration rate is directly proportional to the relative humidity.