What is an index?

a page at the front of a book that lists units and chapters with their page numbers
an alphabetical list of all topics covered in a book and the pages on which they can be found
an alphabetical list of all the specialized words and terms used in the book and their definitions
a statement of the author’s purpose in writing the book, which may include suggestions for using the book

2. which of the following topics would be too broad for a speech lasting 5 to 10 minutes?

Is "ing" an unstressed or stressed syllable?

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.