When sugar in guard cells is converted into starch,the stomatal pore $..........$

In summer months,the rate of transpiration is lowest at

Which of the processes is responsible for the loss of sugars and salts from plants?

Select the correct option regarding the factors affecting transpiration.
$I -$ Temperature
$II -$ Light
$III -$ Structure of stomata
$IV -$ Humidity
$V -$ Number and distribution of stomata
$VI -$ Percentage of open stomata
$VII -$ Water status of the plant
$VIII -$ Wind speed
Identify the external factors and internal factors respectively.

The rate of transpiration depends on which of the following factors?

The loss of water in the form of liquid occurs through . . . . . . .