How does the section "What's Out There?" contribute to the article? (text structure) What role has Area 51 played in the history of UFO sightings in the U. S.? (key ideas and details)

Does anyone know the answer to the question?

What does it meam to write about something that went well today and reflect on its causes

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.