Select all that apply. forms of speaking include: entertaining informative research persuasive

Which of the following “invisible” marks represents an inserted tab?

The forerunner to cell phones, pdas, and smartphones was

Someone plzz me which of these defines a social search? a. asking a search engine a question that is answered by a real person on the other sideb. modifying search results based on popularity of a web pagec.modifying search results based on a ranking of a web page