Solution-Transpiration-cohesion and adhesion

How do transpiration, cohesion and adhesion all work together to provide the forces necessary to overcome gravity to transport water from the roots to the leaves without expending energy? Include definitions of the three terms as they relate to the transport of water up the plant. 

HINT: Begin with transpiration (define); then explain how cohesion (define) and adhesion (define) work together to get water up the plant.

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