Home
Class 12
BIOLOGY
[A] : Biomonitoring is reliable for dete...

[A] : Biomonitoring is reliable for determining the pollutants in air , water and soil .
[R] : The living organism reacts to minute changes in the environment .

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Drug Addiction

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|20 Videos

  • ECOSYSTEM

    TRUEMAN BIOLOGY|Exercise MCQ|179 Videos

Similar Questions

Explore conceptually related problems

[A] : Biomonitoring is reliable for determing the pollutants in air , water and soil . [R] : The living organism reacts to minute changes in the environment .

How can the change in pH in the river water affect the living organisms ?

Living organisms and water, air and earth collectively form

[A] : Living organisms are like a close system . [R] : Energy in the organisms neither can be lost nor gained from the another environment .

[A] : The importance of ecosystem lies in flow of energy and cycling of materials . [R] : Pollutants do not change the equilibrium of environment .

[A] : Ecology is the study of interrelationship between living organisms and their non-living environment . [R] : The biotic community and non-living environment of an area function together to form an ecosystem .

We know that many human activities lead to increasing levels of pollution of the air water bodies and soil . Do you think that isolating these activities to specific and limited areas would help in reducing pollution ?

[A] : Population density of indicator organisms show degree of water pollution . [R] : BOD is an index of organic waste in water .

TRUEMAN BIOLOGY-Ecology -ASSERTION AND REASON
  1. [A] : Man is the consumer of the ecosystem . [R] : An antiforest con...

    Text Solution

    |

  2. [A] : The importance of ecosystem lies in flow of energy and cycling o...

    Text Solution

    |

  3. [A] : Biomonitoring is reliable for determining the pollutants in air ...

    Text Solution

    |

  4. [A] : The food webs are very important in maintaining the stability of...

    Text Solution

    |

  5. [A] : If phytoplanktons are destroyed in the sea then it will effect t...

    Text Solution

    |

  6. [A] : Epiphytes are not found in Delhi . [R] : Delhi has semi-arid c...

    Text Solution

    |

  7. [A] : Water logged soils are physiologically dry . [R] : When the s...

    Text Solution

    |

  8. [A] : There is a chemical warfare amongst some plants . [R] : The ro...

    Text Solution

    |

  9. [A] : Total biomass on land is much more than that in water . [R] :...

    Text Solution

    |

  10. [A] : Epiphytes differs from Lianas in that they are not rooted in th...

    Text Solution

    |

  11. [A] : Biological indicators enhance usefulness of ecology to mankind ...

    Text Solution

    |

  12. [A] : Depletion of ozone layer results in human disease like cancer ....

    Text Solution

    |

  13. [A] : UV irradiation to disinfect polluted waters is not generally re...

    Text Solution

    |

  14. [A] : A species is an interbreeding population which is reproductively...

    Text Solution

    |

  15. [A] : Plants having capacity to withstand wide range of temperature t...

    Text Solution

    |

  16. [A] : Each food-level in an ecosystem is called trophic level . [R]...

    Text Solution

    |

  17. [A] : Biomonitoring is reliable for determing the pollutants in air ,...

    Text Solution

    |

  18. Assertion (A) : Tropical rain forests are disappearing fast from devel...

    Text Solution

    |

  19. [A] : Leaf butterfly & stick insect show mimicry to dodge their enemi...

    Text Solution

    |

  20. [A] : In a food chain , membrane of successive higher levels are fewer...

    Text Solution

    |