It is not necessary to underline product names in an essay. Instead, you can simply capitalize the product name to give it emphasis.
Not unless they are part of the title.
No, in MLA format you do not underline the title of a play. Instead, you should italicize the title to indicate that it is a work of art.
In my English class our teacher tells us to underline titles of book, names in movies
no you do not
No
No, it is no necessary to underline proper nouns in a regular or formative essay, unless used to exaggerate.
Don't ever use facebook in an essay!
yes
yes
yes
No.
Well the title of your essay will be the topic that you chose to write about.