Environmental Reviews 2025 Complete Study Guide and Environmental Science
Evaluation Notes
Why is global replacement fertility 2.1 children per woman rather than 2? - correct answer
✔✔Some children die as infants, and some families have less than 2 children (1, none) so more
than 2 children per family are needed to maintain global replacement fertility.
What indicators could you use to reflect the availability of healthcare in a country? - correct
answer ✔✔Infant mortality rate, Life expectancy
Earth's population is about - correct answer ✔✔7.6 billion.
How does the reduction of infant mortality rates typically affect a population's growth rate? -
correct answer ✔✔The reduction of infant mortality rates could affect a population growth rate
by the country's life expectancy that is relatively high and its infant mortality rate is relatively
low, it is likely that the country has a high level of available health care, an adequate food
supply, potable drinking water, good sanitation, and a moderate level of pollution .infant
mortality is the number of death population per 1000.
What is China's current population? - correct answer ✔✔1.3
Define TFR (total fertility rate) - correct answer ✔✔An estimate of the average number of
children that each woman in a population will bear throughout her childbearing years.
Define replacement level fertility - correct answer ✔✔The total fertility rate required to offset
the average number of deaths in a population in order to maintain the current population size.
Zero population growth happens when - correct answer ✔✔The population is balanced and
nothing changes or birth rate and death rate are equal.(CBR and CDR)
Evaluation Notes
Why is global replacement fertility 2.1 children per woman rather than 2? - correct answer
✔✔Some children die as infants, and some families have less than 2 children (1, none) so more
than 2 children per family are needed to maintain global replacement fertility.
What indicators could you use to reflect the availability of healthcare in a country? - correct
answer ✔✔Infant mortality rate, Life expectancy
Earth's population is about - correct answer ✔✔7.6 billion.
How does the reduction of infant mortality rates typically affect a population's growth rate? -
correct answer ✔✔The reduction of infant mortality rates could affect a population growth rate
by the country's life expectancy that is relatively high and its infant mortality rate is relatively
low, it is likely that the country has a high level of available health care, an adequate food
supply, potable drinking water, good sanitation, and a moderate level of pollution .infant
mortality is the number of death population per 1000.
What is China's current population? - correct answer ✔✔1.3
Define TFR (total fertility rate) - correct answer ✔✔An estimate of the average number of
children that each woman in a population will bear throughout her childbearing years.
Define replacement level fertility - correct answer ✔✔The total fertility rate required to offset
the average number of deaths in a population in order to maintain the current population size.
Zero population growth happens when - correct answer ✔✔The population is balanced and
nothing changes or birth rate and death rate are equal.(CBR and CDR)
