Question
Which of the following is/are aquatic
weeds?Solution
Types of aquatic weeds : a.   Floating weed                                          i.        Water velvet (Azola pinnata)                                         ii.        Water hyacinth (Echhornia crassipes)                                        iii.        Water lettuce (Pistia spp)                                       iv.        Water fern (Salvinia molesta) b.   Rooted weed with floating leaves:                                          i.        Lotus (Nelumbo nucifera)                                         ii.        White water lily (Nymphaea alba) c.    Submerged weeds:                                          i.        BGA (Anabaena spp.)                                         ii.        Pond weed (Potamogeton spp.)                                        iii.        Hydrilla d.   Emergent weeds                                          i.        Typha spp                                        ii.        Ipomea spp
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