Home
Class 12
BIOLOGY
What is an algal bloom ?...

What is an algal bloom ?

Text Solution

Verified by Experts

The extensive growth of planktonic (free- floating) algae in water bodies due to the presence of organic matter in water (cnitrogen and phosphres) that acts as a food source is called an algal bloom. This imparts a distinct colour to the water boides.
Promotional Banner

Topper's Solved these Questions

  • ECOSYSTEM

    NCERT EXEMPLAR|Exercise Ecosystem|67 Videos

  • EVOLUTION

    NCERT EXEMPLAR|Exercise Evolution|52 Videos

Similar Questions

Explore conceptually related problems

What is Algal bloom ? Write down is its effect on water body.

Algal blooms are

A factory drains its waste water into the nearly lake. It has caused algal bloom. (a) How was the algal bloom caused ? (b) What would be the consequences ? (c) Name the phenomenon that caused it .

How does an algal bloom cause eutrophication of a water body? Name the weed that can grow in such a eutrophic lake.

The Algal bloom

The Algal bloom

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

Explain the cause of algal bloom in a water body. How does it affect an ecosystem?

Recently, there was an editorial in the newspaper about 'Rhinoceros in Kajiranga National Park'. These consume foliage in large guanitities and then move to nearby waterbodies and defarcate there. As a result, water bodies witness algal growth and are subsequently getting choked. (i) What is the possible reasons of algal growth in these water bodies ? Name the process involved. (ii) What will be the consequence of excessive choking of water bodies with algal bloom ? (iii) List atleat one step that governmet must take to save such water bodies.

NCERT EXEMPLAR-ENVIRONMENTAL ISSUES -Environmental Issues
  1. Mention any two example of plants used as wind breakers in the agricul...

    Text Solution

    |

  2. Name an industry which can cause both air and thermal pollution and as...

    Text Solution

    |

  3. What is an algal bloom ?

    Text Solution

    |

  4. What do you understant by biomagnification?

    Text Solution

    |

  5. What are the three major kinds or impurities in domestic wastewater?

    Text Solution

    |

  6. What is reforestation?

    Text Solution

    |

  7. What is the best solution for the treatment of electronic wastes?

    Text Solution

    |

  8. Is it true that carpets and curtains/ drapes placed on the floor or wa...

    Text Solution

    |

  9. What is hybrid vehicle technology ? Explain its adventages with a suit...

    Text Solution

    |

  10. Is it true that if the dissolved oxygen level drops to zero, the water...

    Text Solution

    |

  11. Name any one green house gas and its possible source of production on ...

    Text Solution

    |

  12. It is a common practice to plant trees and shrubs near the boundary wa...

    Text Solution

    |

  13. Why has the National Forest Commission of India recommended a relative...

    Text Solution

    |

  14. How can slash and burn agriculture become environment friendly?

    Text Solution

    |

  15. What is the main idea behind " Joint Forest Management Concept" introd...

    Text Solution

    |

  16. What do you understand by Snow- blindness ?

    Text Solution

    |

  17. How has DDT caused decline in bird population ?

    Text Solution

    |

  18. Oberve the figure A and B given below and answer the following questio...

    Text Solution

    |

  19. Write a short note on electronic waste. List the various sources of e-...

    Text Solution

    |

  20. What is organic farming ? Discuss the benefits of organic farming as a...

    Text Solution

    |