Home
Class 12
BIOLOGY
[A] : The age-sex structure of human pop...

[A] : The age-sex structure of human population in countries like France and Germany gives a steep pyramid .
[R] : 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

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • APPLICATION OF BIOTECHNOLOGY

    TRUEMAN BIOLOGY|Exercise Multiple Choice Questions|122 Videos
  • Biochemistry

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|10 Videos

Similar Questions

Explore conceptually related problems

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.

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.

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 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

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 .

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

[A]: Since 1960 s, there is a dramatic increase in human population growth rate. [R]: Infant and child mortality rate has been reduced

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 ?

[A] : Natural populations are capable of an enormous and rapid increase is numbers but for the most part remain relatively constant in size . [R] : Human interference has led to constancy in the size of the natural populations .

The population of a country increases by 2% every year. If it increases k times in a century, then prove that [k]=7,w h e r e[dot] represents the greatest integer function.

TRUEMAN BIOLOGY-Applications of Biology -ASSERTION AND REASON
  1. [A]: Cocaine is an alkaloid derived from the shrub Cannabis sativa. ...

    Text Solution

    |

  2. [A]: Winged bean is widely cultivated throughout India. [R]: The ...

    Text Solution

    |

  3. [A] : The age-sex structure of human population in countries like Fran...

    Text Solution

    |

  4. [A]: Decrease in mortality would result in decreased population growth...

    Text Solution

    |

  5. Assertion. Death is regarded as the most regulatory process on earth. ...

    Text Solution

    |

  6. [A]: The ideas of Thomas Malthus are more applicable today. [R]: ...

    Text Solution

    |

  7. [A]: Since 1960 s, there is a dramatic increase in human population gr...

    Text Solution

    |

  8. [A]: Oral contraceptive pills are meant for family planning purpose. ...

    Text Solution

    |

  9. [A]: Environment resistance does not limit population growth. [R]...

    Text Solution

    |

  10. [A]: Growth curve is the graphic representation of the total growth ag...

    Text Solution

    |

  11. [A]: Demography is the study of human population growth [R]: Dem...

    Text Solution

    |

  12. Assertion : Interferons are a type of antibodies produced by body cell...

    Text Solution

    |

  13. Assertion (A): Organ transplantation patients are given immunosuppress...

    Text Solution

    |

  14. Assertion : Persons sufffering from haemophilia fail to produce blood ...

    Text Solution

    |

  15. [A] : Sensescence in the time when age as- sociated defects are manif...

    Text Solution

    |

  16. Assetion: In recombinant DNA technology, human genes are often transfe...

    Text Solution

    |

  17. Assertion : Agrobacterium tumefaciens is popular in genetic engineerin...

    Text Solution

    |

  18. [A]: Typhoid carriers may be cured by remov- ing their spleen. [R...

    Text Solution

    |

  19. [A]: Hand ,Foot and mouth disease causes ulceration in mouth and feets...

    Text Solution

    |

  20. [A] : A blood dialyser is an artificial kidney which can sustain kidne...

    Text Solution

    |