Twhat are things that can only develop in females

Anyone who can chat with me right now? i m very bored.

If birth rates fall below the replacement level, then a country is in which stage of demographic transition? a. urbanization/industrialization b. mature industrial c. postindustrial d. pre-modern

Describe the potential effects, on people, of unprotected exposure to the sun. give an example of 1 new thing have you learned about the sun’s uv rays.