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प्रश्न
Birth rate and death rate.
उत्तर
| Birth Rate | Death Rate |
| it is the number of live births per thousand of population during a year for a particular region. | It is the number of deaths per thousand of population during a year for a particular region. |
| It is calculated using the following formula: CBR = Bi/P x lOOO Here, CBR = crude birth rate, Bi = Number of live births in a year, P = the estimated midyear population of that year. |
It is calculated using the following formula: CDR= D/P x lOOO Here, CDR = crude death rate, D = Number of deaths in a year, P = the estimated midyear population of that year. |
| If birth rate is more than death rate, it results in positive growth of population. | If death rate is more than birth rate it results in negative growth of population. |
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Reasoning (R): Birth rate, death rate and migration affect the population of a region.
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R : Birth rate, death rate and migration affect the population of a region.
A: Assertion; R: Reasoning
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Reasoning (R): Birth rate, death rate and migration affect the population of a region.
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Reason: Birth rate, death rate and migration affect the population of a region.
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Reason: Birth rate, death rate and migration affect the population of a region.
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| Figure A | Figure B |
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Reasoning (R): Birth rate, death rate and migration affect the population of a region.
Assertion : Population of a region does not change.
Reasoning : Birth rate, death rate and migration affect the population of a region.
Assertion (A): Population of a region does not change.
Reasoning (R): Birth rate, death rate and migration affect the population of a region.
