Type: Posts; User: anjaliaroha
1. SEO is a free service available for SERP while in PPC you have to pay for each and every click.
2. PPC results fast while SEO is slow process.
Doing keywords bold is good for SEO but you can't do it again and again. You have to do this very carefully. You can also add heading tags, For examnle h1,h2,h3,h4,h5h6.