Home
Class 12
BIOLOGY
Assertion : Age sex structure of human p...

Assertion : Age sex structure of human population in countries like France and Germany gives a steep pytamid.
Reason : In countries like Sudan and India, the population is increasing at a rapid rate.

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

If the population of country double in 50 years, in how many years will it triple under the assumption that the rate of increase is proportional to the number of inhabitants.

A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them

The total populatiion of a country is 2xx10^(8) . If the population increases at the rate of 12.5% at the interval of each 2 years, then what will be the population of the country after 6 years.

The population of country increases at the rate proportional to the number of inhabitants. If the population doubles in 30 years, in how many years will it treble? Given log_(e)3=1.6log_(e)2 .

The population of a country doubles in 50 years. Assuming that the rate of increase of population is proportional to the number of inhabitants, in how many years would the population becomes three times ?

The population of a country increases at a rate proportional to the number of inhabitants. f is the population which doubles in 30 years, then the population will triple in approximately. (a) 30 years (b) 45 years (c) 48 years (d) 54 years

Which of the following is most convincing reason for increasing population growth in a country?

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 , member of successive higher levels are fewer i...

    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

    |