Search:-
The main way Google generates its revenue is through a pair of adversiting services called Ads and AdSense. With Ads, advertisers submit ads to Google that include a list of keywords relating to a product, service or business. When a Google user searches the Web using one or more of those keywords, the ad appears on the SERP in a sidebar. The advertiser pays Google every time a user clicks on the ad and is directed toward the advertiser’s site.