What’s the word for this definition?

Introduction to making a difference: it’s our world, too!

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel? mark this and return save and exit

Which sentence you is an example of chronological structure in “the city without us”?