Name the tissue which:
$(i)$ allows aquatic plants to float.
$(ii)$ provides flexibility to plants.

(N/A) $(i)$ Aerenchyma: This is a type of parenchyma tissue containing large air cavities that provide buoyancy to aquatic plants,allowing them to float.
$(ii)$ Collenchyma: This is a mechanical tissue that provides structural support and flexibility to the plant,allowing easy bending without breaking.