CBSE Class 9 Answered
water hyacinth float on water surface.why?
Asked by sbidipak | 21 Jun, 2017, 06:38: PM
Expert Answer
Water hyacinths are the only large aquatic herb that can float on the water unattached to the bottom. 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.
Answered by Sivanand Patnaik | 22 Jun, 2017, 07:56: AM
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