The world's most problematic aquatic weed is also called

Consider the following statements I.Algal blooms are formed by free floating algae II.Algal bloom causes fish mortality and deterioration of water quality III.Water hyacinth the world's most problematic aquatic weed is also called "Terror of Bengal" Which of the statements given above are correct about algal blooms?

Worlds most problematic aquatic weed is

The following species of plant is considered as the world's most problematic aquatic weed is

Which of the following is referred to as the world's most problematic aquatic weed?

Which of the following is referred to as the world's most problematic aquatic weed?

Which of the following is referred to as the world's most problematic aquatic weed?

Name the world's most problematic aquatic weed.What is the natural of the water body in which the weeds grow abundantly?