What is the main factor that moves most of the water within xylem vessels toward the top of a tree?

What is the role of fadh2 in cellular respiration

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

How does human environment effect the biosphere