Alguien me ayuda porfavor dice: escribe el nombre, para qué se usaba, o qué utilidad tenía cada una de las siguientes manifestaciones de estas culturas

Someone please help me says: write the name, that was used, or how useful was each of the following manifestations of these cultures

1.the population change is near or at replacement level.

4. the birth and death rates are balanced.

6. sweden is most likely a developed country.