It would be to define the essay's purpose.
Answer:
One of the great contributions the Sumerians made to civilization was their many inventions. They invented the first form of writing, a number system, the first wheeled vehicles, sun-dried bricks, and irrigation for farming. All of these things were important for the development of human civilization.
Answer:
Not sure
Explanation:
There is only three types of run-on sentences and they are comma splices, fused sentences, and polysyndetons.