Final answer:
Up to 90 percent of the water that plants absorb through their roots can be lost to the atmosphere through the process of transpiration, which occurs passively through leaf stomata.
Step-by-step explanation:
The amount of moisture found in the atmosphere released by plants through transpiration can reach up to 90 percent of the water taken up by roots.
This process involves the loss of water vapor through tiny openings called stomata, which are found in the leaves of plants. Transpiration is a passive process that does not require metabolic energy in the form of ATP for water movement.
This biological process is essential for water movement within the plant and contributes significantly to the hydrological cycle.