Answer:
d. greater use of birth control by most members of a society.
Step-by-step explanation:
IPAT mean impact, population, affluence, technology
It however talks about Environmental impact(I) being the product of three factors namely: Population, Affluence and Technology.
Organisms or people impact the most in an environment due to the various activities that they perform in it. The more the people or organism the more impact they will have on the environment and vice versa.This is why greater use of birth control by most members of a society will likely reduce the environmental impact of a society.