Question

water hyacinth floats on water surface explain with reason

Answer 1

due to arenchyma tissue present in aquatic plants which provide byouancy

Answer 2

They float on bloated air-filled hollow leaf stalks. The leaves of free-floating water hyacinths are characterised by a bulbous swelling in a section of the petiole. The oxygen bubbles float to the surface of water and get released into the air which provides buoyancy.