Answer:
population education is an exploration of knowledge and attitude about population, the family.
Environment education is the process that allow individual to explore environmental issues, and take action to improve the environment
Answer:
There's more than one type of development, please explain. But if you mean the zygote development, then : when the egg cell and the sperm cell connect to each other , a fertilized egg is formed, known as a zygote. It changes place from the oviduct to the uterus and it start to develop from a zygote to a fuetus, to an embryo. Youre welcome