Well,roots have tiny pores,so when water goes through the soil and reaches the roots,the pores absorb the water which circulate and go to other parts of the plant.
Hydrogen! Splitting water into oxygen and hydrogen is achieved by electrolysis (see reaction below). In fact, its the most important source of hydrogen gas. 2H2O(l) → 2H2(g) + O2(g) Find out more...