What is the author’s purpose for writing this paragraph? to inform readers about the vitamins in leafy greens
to persuade readers to eat greens for their health
to persuade readers to learn about dangerous diseases
to entertain readers with a personal story about heart health

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.