Question

Why water hyacinth have become a problematic weed in India ?

Answer 1

Water hyacinth is an exotic aquatic shrub species . It was imported to India during British rule by the european for its beautiful look due to its beautiful flowers and shape of leaves. But as an allein species it became a grave threat to native aquatic species . It competed with them and eliminated them from their environment. It spreaded with an alaraming rate throughout the water body. It also reduced the availability of dissolved oxygen in the water body required to support aquatic lives . So there was also reduction in fish population in the water hyacinth grown water body. As it was first introduced in westbengal and its effect was seen there it is called as terror of bengal.

MARK..... BRAINLIEST...