Botany · PYQ NEET UG 2023

Which one of the following statements is NOT correct?

1. A
   The micro-organisms involved in biodegradation of organic matter in a sewage polluted water body consume a lot of oxygen causing the death of aquatic organisms.
2. B
   Water hyacinth grows abundantly in eutrophic water bodies and leads to an imbalance in the ecosystem dynamics of the water body.
3. C
   Algal blooms caused by excess of organic matter in water improve water quality and promote fisheries.
4. D
   The amount of some toxic substances of industrial waste water increases in the organisms at successive trophic levels.