Connecting situations or staments in the text to something else or making a note of something so you can remember it for a later answer for a question.
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.
will do i have to give the whole speech of radium
