There are now about 3300 different human "language families" in the whole world. assume that all these are derived from a single
original language, and that a language family develops into 1.42 language families every 5960 years. about how long ago was the single original human language spoken?
To write an abstract, start with a short paragraph that explains the purpose of your paper and what it's about. Then, write a paragraph explaining any arguments or claims you make in your paper. Follow that with a third paragraph that details the research methods you used and any evidence you found for your claims.
