4. Which change describes a demographic transition?
a. a population moves from a high birthrate and death rate to a high birthrate and low death
rate
b. a population moves from a high birthrate and low death rate to a low birthrate and death
rate
c. a population moves from a low birthrate and death rate to a low birthrate and high death
rate
d. a population moves from a high birthrate and death rate to a low birthrate and low death
rate
D Stage 1—High birth and death rates lead to slow population growth. Stage 2—The death rate falls but the birth rate remains high, leading to faster population growth. Stage 3—The birth rate starts to fall, so population growth starts to slow.
