Question

Which of the following plant is used for the purification of water [BHU 2004]
A) Biggiata
B) Chlorella
C) Spirogyra
D) Eichhornia

Answer 1

Answer:

ans. d (Eichhornia)

Explanation:

Also called "Water Hyacinth", the roots of this plant is extremely tolerant and naturally absorb pollutants such as lead, mercury which could make it suitable for bio-cleaning of industrial waste-water.Efficient in removing Arsenic from arsenic contaminated drinking water. It enhances nitrification in waste-water treatment.

Answer 2

Answer:

Eichhornia is correct answer