In which form$(s)$ does water exist in nature?

Movement of particles of matter in the cell due to its own kinetic energy is called

In active absorption of water in plants,the metabolic energy is supplied by:

Water is necessary for which of the following processes or functions in plants?

Which property of water allows planktons to move freely on the water surface?

Which of the following statements is/are not incorrect?
$(i)$ Water and minerals,and food are generally moved by a mass or bulk flow system.
$(ii)$ Bulk flow can be achieved either through a positive hydrostatic pressure gradient or a negative hydrostatic pressure gradient.
$(iii)$ The bulk movement of substances through the conducting tissues of plants is called translocation.
$(iv)$ Xylem translocates organic and inorganic solutes,mainly from roots to the aerial parts of the plants.
$(v)$ Phloem translocates water,mineral salts,some organic nitrogen and hormones,from the leaves to other parts of the plants.