The question asks to identify the continent with the largest share of the world's total population. This requires knowledge of global demographics and the population distribution across the seven continents.
A) Asia is home to the largest share of the world's total population. It accounts for approximately 60% of the global population, largely due to the presence of highly populous countries like China and India.
The question asks for the definition of 'crude birth rate'. To answer this, we need to recall the standard demographic definitions of various population indicators.
Correct Option: B) The number of live births per 1,000 people in a population during a given year.
This is the standard definition of the crude birth rate (CBR). It is calculated as:
\[ \text{CBR} = \frac{\text{Number of live births in a year}}{\text{Mid-year total population}} \times 1000 \]The question asks for the definition of 'crude death rate'. We need to identify the option that correctly defines this demographic indicator.
Correct Option: B) The number of deaths per 1,000 people in a population during a given year.
This option accurately defines the crude death rate. It is a fundamental demographic indicator used to measure mortality in a population. The formula for crude death rate (CDR) is:
\[ \text{CDR} = \frac{\text{Number of deaths in a year}}{\text{Mid-year population}} \times 1,000 \]The question asks for the definition of 'natural increase' in population. This term is fundamental in demography and refers specifically to population change driven by births and deaths, excluding external factors like migration.
A) The difference between the birth rate and the death rate of a population, excluding migration. This definition perfectly aligns with the demographic concept of 'natural increase'. It isolates the population change attributable solely to fertility and mortality within a given population.
The question asks for the best definition of 'Total Fertility Rate' (TFR). We need to evaluate each option against the standard demographic definition of TFR.
B) The average number of children that would be born to a woman over her reproductive lifetime, given current age-specific fertility rates. This is the precise definition of Total Fertility Rate (TFR). TFR is a synthetic cohort measure that indicates the average number of children a woman would have if she were to pass through her childbearing years conforming to the age-specific fertility rates of a given year.
The question asks for the specific term describing the fertility rate required for a population to maintain its size over generations, without growth or decline, assuming no migration. This is a fundamental concept in demography.
Correct Option: D) Replacement level fertility, generally estimated at around 2.1 children per woman
This option accurately defines the concept and provides the commonly accepted estimate for this rate. Replacement level fertility ensures that, over the long run, the number of births equals the number of deaths, leading to a stable population size in the absence of migration.