Which of the following is the unit of measurement of water potential?

The term water potential was proposed by

When solute potential increases,then water potential would:

Which one of the following statements is wrong?

Briefly describe water potential. What are the factors affecting it?

How many of the following statements are correct?
$I -$ Water molecules possess kinetic energy.
$II -$ In liquid and gaseous forms,water molecules are in random motion.
$III -$ In liquid and gaseous forms,the motion of water molecules is slow and constant.
$IV -$ If a system has a higher quantity of water,its water potential is higher.
$V -$ Pure water has the lowest water potential.
$VI -$ Water always moves from a region of higher water potential to a region of lower water potential.