Is there any method that we can use to stabilize the population in order to balance the relationship between human and nature

below are some easy questions related to the ppt, these don’t have to be too long… just a quick comment

1. Is there any method that we can use to stabilize the population in order to balance the relationship between human and nature?

2. what are other examples of countries that have varying sex ratio? Why do they have this? Are societies that have a more balanced sex ratio generally more successful?