Final answer:
Kerala has reduced its population through education and family planning programs, including promoting female education and providing access to reproductive healthcare.
Step-by-step explanation:
Kerala has reduced its population through a combination of education and family planning programs. One successful initiative has been the promotion of female education, which has led to increased awareness about contraception and family planning methods. Kerala's government has also implemented various healthcare programs that provide access to reproductive healthcare and promote awareness about population control. These efforts have resulted in a decline in birth rates and overall population growth in the state.