Headings and subheadings in a text are used to organize the text neatly, and to have the reader better understand what you are talking about.
It comes from the heart, you have to be brave and strong to have courage.
A search engine is a program that searches/identify items in a database which corresponds to keywords specified by the user. A meta search engine is an online information retrieval tool that uses data of a web (search English) and that makes its own results. A subject directory is a service which offers a collection of links to the internet which is posted by creators. Hope this helped!
A satirist may make a subject ridiculous by comparing it to something undignified.
That way he diminishes the value of that subject and mocks it, creating a funny effect.
