NCERT Important Questions Class 9 Science biology Chapter 6
Important NCERT Extra Questions
Chapter 6 Tissues
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
Water hyacinth floats on water surface. Explain.
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Water hyacinth (Eichornia crassipes) has spongy petioles which enclose a lot of makes the plant lighter than water so that it is able to float on surface of water.