Search:

Web 2.0 are the sites which are used to increase DA, Search ranking and traffic to the website. Here are some Web 2.0 List for SEO.

Google Adwords,
Facebook Ads, etc are the paid tools to promote your website.

Off-page SEO is nothing but a way to create backlinks for your blog to improve search engine ranking.

like using Google Adword to show your website higher in the search engine results without doing any SEO work.

I never heard or read about this one. I only know White hat SEO and Black hat SEO.

Keyword Density and Keyword Stuffing are important in SEO. You Keyword Density should be 2-3% only in the article.

I Use Google Adsense to earn money.

The best way to check the quality of a backlink is by checking the domain authority (DA)

Mate, there are two types of SEO available, White Hat SEO and Black Hat SEO and both contain On-Page SEO and Off-page SEO.

Depend on the time. usually 3-5

https://www.seokhazanas.com/

I use Google webmaster to submit my website.

On-page SEO is the practice of optimizing individual web pages in order to rank higher and earn more relevant traffic in search engines. On-page refers to both the content and HTML source code of a...

There are many thing by which you can speed up your website and Pages. Read all the stuff on the below link

https://www.seokhazanas.com/how-to-optimize-wordpress-website-speed/

150-160 characters is the limited.

Sure, I have a website, which having social bookmarking sites list.

Check: https://www.seokhazanas.com/latest-social-bookmarking-sites-list/