Home
Class 12
BIOLOGY
The green scum seen in the fresh water ...

The green scum seen in the fresh water bodies is :

A

Bule green algae

B

Red algae

C

Green algae

D

Both (a) and (c)

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    OSWAAL PUBLICATION|Exercise TOPIC - 2 ( LONG ANSWER TYPE QUESTIONS)|3 Videos

  • ECOSYSTEM

    OSWAAL PUBLICATION|Exercise TOPIC-3 : Ecological Succession and Nutrient Cycling (Multiple Choice Questions)|20 Videos

  • EVOLUTION

    OSWAAL PUBLICATION|Exercise TOPIC :2 EVOLUIONARY THEORIES .ITS MECHANISM AND EVOLUTION OF MAN( MULTIPLE CHOICE QUESTIONS)|18 Videos

Similar Questions

Explore conceptually related problems

The indian fresh water prawn is

Name a fresh water sponge.

The natural ageing of the fresh water lake is called

Least pore size seen in

Explain why Factory waste is neutralised before disposing it into the water bodies.

the largest RBCs are seen in

Sea water is converted into fresh water based upon the phenomenon of

What is eutrophication ? Explain its consequence on the life of plants and animals in such water bodies .

Mention any two common fresh water fishes.

OSWAAL PUBLICATION-ENVIRONMENTAL ISSUES -TOPIC - 2 ( MULTIPLE CHOICE QUESTIONS.)
  1. The material generally used for sound proofing of rooms like a record...

    Text Solution

    |

  2. Compressed Natural Gas (CNG) is :

    Text Solution

    |

  3. World's most problematic aquatic weed is :

    Text Solution

    |

  4. Which of the following causes biomagnification ?

    Text Solution

    |

  5. The expanded form of DDT is :

    Text Solution

    |

  6. Which of the following material takes the longest time of biodegrad...

    Text Solution

    |

  7. Choose the incorrect statement.

    Text Solution

    |

  8. Among the following which one causes more indoor chemical pollution...

    Text Solution

    |

  9. The green scum seen in the fresh water bodies is :

    Text Solution

    |

  10. The loudness of a sound that a person can withstand without discomfort...

    Text Solution

    |

  11. The major source of noise pollution , world wide is due to :

    Text Solution

    |

  12. Match correctly the following and choose the correct option: The...

    Text Solution

    |

  13. Catalytic converters are fitted into automobiles to reduce emission of...

    Text Solution

    |

  14. Why is it necessary to remove sulphur from petroleum products?

    Text Solution

    |

  15. Which one of the following impurities is easiest to remove from waste ...

    Text Solution

    |

  16. Which one of the following diseases is not due to contamination of wat...

    Text Solution

    |

  17. Nuisance growth of aquatic plants and bloom forming algae in natural w...

    Text Solution

    |

  18. Algal blooms impart a distinct colour to water due to:

    Text Solution

    |

  19. Match the items in column I and column II and choose the correct opti...

    Text Solution

    |

  20. The textbook you came across Three Mile Island and Chernobyl disasters...

    Text Solution

    |