9. What causes the tension that draws water up a plant? (A) Humidity (B) Plant growth (C) Root pressure (D) Evaporation

11. According to the passage, why does water travel through plants in unbroken columns? (A) Root pressure moves the water very rapidly. (B) The attraction between water molecules in strong. (C) The living cells of plants push the water molecules together. (D) Atmospheric pressure supports the columns.