If a website's search engine saturation with respect to a particular search engine is 20%, what does it mean?

What is the main reason for the effectiveness of optimizing a webpage towards a long tail keyword search?

Google gives priority to themed inbound links.

Which black hat SEO technique is characterized by a method to deceive search engines, by detecting the search engine bot and 'feeding' it with a different HTML code than the HTML actually served to users?

Implementing a 301 Permanent Redirects on the old pages to redirect to the new pages is a good idea from the SEO perspective.

Which search engine technology prevents a website from appearing in numerous top positions in the search engine result pages?

It is best to use single title tag across all of the landing pages.

Where are the title tags displayed?

Does Google always use description meta tags on the search result?

What file should you create so that you can provide to bots with more information about the images found on your site?

brandonsbaseballcards.com/folder1/1089257/x1/0000023a.htm is better than brandonsbaseballcards.com/articles/ten-rarest-baseball-cards.htm because?