Answer the following scenario-based question:
 
Riya observed that when she placed a stem of a plant in colored water, the leaves started showing color after a few hours. She wondered how water moves from roots to leaves.
 
a. The upward movement of water from roots to leaves is called ___________
.
 
b. The water droplets on the leaf edges in the morning are due to ________
 .
 
c. The main tissue responsible for the transport of water is ________.