The insecticides and pesticides sprayed on leaves are :
Systemic
Organic
Cytological
Harmless
Which of the following is correct?
In still air, transpiration will slow down
In still air, transpiration will increase
In moving air, transpiration decreases
In moving air, the region around the leaf is saturated
Which of the following statements is NOT true of transpiration?
It draws water up the stem
It draws dissolved salts up the stem
It draws food up the stem
It has a cooling effect on the leaves
