Home
Class 12
BIOLOGY
[A] : Social forestry programme is grows...

[A] : Social forestry programme is grows trees for fuel , fodder & fruits in rural areas .
[R] : Production plantation grows trees for use in industries .

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|173 Videos

Similar Questions

Explore conceptually related problems

Assertion : Social forestry programme grows trees for fuel, fodder and fruits in rural areas. Reason : Production plantation grows trees for use in industries.

The tree species most commonly used in social forestry is :

[A] : Epiphytes differs from Lianas in that they are not rooted in the soil . [R] : Epiphytes grow on trunks and trees .

Noise is a common problem in both urban and rural areas, traffic noise in particular. Trees and shrubs are not only visually attractive but also can make effective noise barriers. Therefore when space permits we have to plant more trees and shrubs in areas where there is noise problem. By doing this noise can be reduced by six decibels over a distance of 30 metres. The only thing we have to keep in mind is that the planting should be particularly dense, the trees which have dense foliage and relatively vertical orientation of arrangements should be planted. It will completely screen the source of noise. If there is any gap in barrier it will still allow noise to penetrate. Single layer of trees is worthless as a noise barrier. Due to inter-reflection, multi-rows of trees are more effective. The planted trees must be taller. We can reduce noise level by 1.5 decibels with each additional 3 feet of tree height When the opportunity to use trees is restricted a combination of shrubs and tall grass can be used. Instead of tarmac or gravel surfaces soft grass ground cover is preferable. It will absorb noise rather than reflect it. Rows of trees, shrubs, crotons, ground covering plants, climbers and their flowers not only reduce noise and provide a beautiful backyard they also help block wind, provide shade, and absorb traffic pollution. Higher the trees

Aviation is important, both as an industry in its own right and as a facilitator for the success and competitiveness of other industries. The success of the aviation industry is also integral to national competitiveness, economic development and social progress. More importantly, aviation supports those new economy sectors on which India's future prosperity relies, like information technology, biotechnology, finance and electronics. That India's air transport industry is on the rise is an undisputable fact. However, the Indian economy will only achieve its true potential if we are able to compete in the industries of the future. We need to be strong in the areas with potential to grow and the role of India's aviation sector is critical in this regard. Growth in India's aviation sector is important to its economic development.

TRUEMAN BIOLOGY-Ecology -ASSERTION AND REASON
  1. Assertion (A) : Tropical rain forests are disappearing fast from devel...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. Assertion (A) : Methane component of greenhouse gases contributing to ...

    Text Solution

    |

  5. Assertion: Suspended particulate matter(SPM) is an important pollutant...

    Text Solution

    |

  6. Assertion : Age sex structure of human population in countries like Fr...

    Text Solution

    |

  7. Assertion (A) : Presently, the global atmosphere is warming up. Reas...

    Text Solution

    |

  8. [A] : Ozone depletion at the south pole will threats world's fisheries...

    Text Solution

    |

  9. [A] : Inquilines can not survive without human care . [R] : Cultige...

    Text Solution

    |

  10. [A] : Problems of ecological environment arise from over population....

    Text Solution

    |

  11. [A] : Social forestry programme is grows trees for fuel , fodder & fru...

    Text Solution

    |

  12. [A] : Cultigens (domesticated animals & cultivated plants ) are not in...

    Text Solution

    |

  13. [A] : Population density of indicator organisms show degree of water p...

    Text Solution

    |

  14. [A] : Traffic Jams cause giddiness , reduced vision , exhaustion etc ....

    Text Solution

    |

  15. [A] : Thermal pollution is harmful to fishes . [R] : Heating cause...

    Text Solution

    |

  16. [A] : Stratosphere is an excellent region for air travel . [R] : Be...

    Text Solution

    |

  17. [A] : Using dung as fuel greatly reduces grain production . [R] : Du...

    Text Solution

    |

  18. Assertion : Lichens are a pioneer community in the temperate region. ...

    Text Solution

    |

  19. Read the given statement and select the correct option. Statement 1:...

    Text Solution

    |

  20. [A] : Life occurs upto 15000 m in the air on mountains . [R] : At gr...

    Text Solution

    |