1 49 What are the main functions of search engines? Searching the web, collecting all webpages, and running search algorithms Crawling webpages, building indexes, and providing answers to queries Finding all website addresses, ranking indexes by keywords and saving top results All of the above 12 Every SEO-friendly page should include the following: Unique topic, unique title, unique meta description Descriptive anchor text for every link Keywords in the filename, lowercase and hyphen separated All of the above D 1993 49 What event/s made Google start the development of GoogleNews? 2008 US Presidential Elections 2004 earthquake off the coast of Sumatra 2001 terrorist attacks in the United States All of the above