Home
Class 12
BIOLOGY
Which of the following statements is not...

Which of the following statements is not correct regarding algal blooms ?

A

Algal blooms are formed by blue-green algae.

B

Growth of Eichhornia crassipes causes colouration of water during during algal blooms.

C

Increased growth of algae causes depletion of `O_(2)` in water.

D

Algal blooms cause deterioration of water quality and fish mortality.

Text Solution

Verified by Experts

The correct Answer is:
B
It is the growth of planktonic algae which impart a characteristic colouration to water during algal blooms.
Promotional Banner

Topper's Solved these Questions

  • ECOSYSTEM

    NCERT FINGERTIPS|Exercise Ecosystem|140 Videos

  • EVOLUTION

    NCERT FINGERTIPS|Exercise Evolution|160 Videos

Similar Questions

Explore conceptually related problems

Which of the following statements is correct regarding ECG ?

Which of the following statement is not correct regarding cochlea?

Which of the following statement is correct regarding cockroach

Which of the following statements is correct regarding vasectomy ?

Which of the following statements is not correct regarding colchicine?

Which of the following statements is correct regarding cockroach ?

Which of the following statements is not correct regarding oviparous animals ?

NCERT FINGERTIPS-ENVIRONMENTAL ISSUES-Environmental Issues
  1. The graph given below represents the effect of sewage discharge on som...

    Text Solution

    |

  2. A lake with an inflow of domestic sewage rich in organic waste may res...

    Text Solution

    |

  3. Which of the following statements is not correct regarding algal bloom...

    Text Solution

    |

  4. A lake near a village suffered heavy mortality of fishes within a few ...

    Text Solution

    |

  5. Which of the following is referred to as the world's most problematic ...

    Text Solution

    |

  6. The term 'terror of Bengal' is used for

    Text Solution

    |

  7. Given below are four statements each with two blanks. Select the optio...

    Text Solution

    |

  8. Escherichia coli is used as an indicator organism to determine polluti...

    Text Solution

    |

  9. Contamination of water sewage is indicated by cysts of

    Text Solution

    |

  10. Phosphate pollution is brought about by

    Text Solution

    |

  11. Match column I with column II and select the correct option from the g...

    Text Solution

    |

  12. Minamata disease was caused due to the consumption of

    Text Solution

    |

  13. A disease caused by eating fish contaminated by industrial waste, cont...

    Text Solution

    |

  14. Fluride pollution initially affects

    Text Solution

    |

  15. A dental disease characterised by mottling of teeth is due to the pres...

    Text Solution

    |

  16. DDT residues are rapidly passed through food chain causing biomagnific...

    Text Solution

    |

  17. Given figure represents biomagnification of DDT in an aquatic food cha...

    Text Solution

    |

  18. Which of the following statements is not correct regarding biomagnific...

    Text Solution

    |

  19. Which among the following is likely to have the highest levels of DDT ...

    Text Solution

    |

  20. Accelerated eutrophication occurs due to

    Text Solution

    |