Answer:
The social structure, religious beliefs, economic prosperity and urbanization within each country are likely to affect birth rates as well as abortion rates, Developed countries tend to have a lower fertility rate due to lifestyle choices associated with economic affluence where mortality rates are low, birth control
Explanation:
Research Project
Well the first few were found in Virginia, Jamestown and Plymouth.
I agree on that. it's not like there is completely no force of gravity acting on them (I mean if they're still around the earth) , it's that it's so little that they can't even notice it. they'll float around and they seems like they have no weight. this is called weightlessness.