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PPC is the process of getting instant result, By paying for the clicks, by clicks you will get the required result

Create a sitemap and submit it on the google search console

Giving Link to the text is called the Anchor text

Share Your Photos In Info-graphics and image sharing websites

Submitting web page to the google search engine in terms of HTML sitemap is called webpage submission

Giving link to other websites is called outgoing link

Yes It will affect. In some of the submission websites if we submit without SSL certificate they will remove

On page optimization is the process of optimizing the websites for the seo ranking such as Fixing meta tags , Alt tags, Website Speed Optimization

Submitting on the high page rank relevant websites and getting link juice is called backlinks

Google Analytics is the tool which is mainly used for the analysing of the website

Mobile First Indexing is the process of Google First giving out the indexing status for mobile based content

SEO is process of ranking websites on the google search result

Changes based on algorithm

Spam links we cannot control

The Unique visitors is like people who are visited newly

Google spider is the bot which is mainly for crawling the website