In a nutshell, AdWords is Google’s paid advertising product. … Those are AdWords ads that a company paid for so that people will notice their business whenever they’re searching Google. And, they only have to pay whenever someone clicks on the ad. This is known as cost-per-click advertising (CPC).
For More Information Please Refer: https://www.forbes.com/sites/johnrampton/2014/07/07/5-reasons-you-shouldnt-use-adwords/