adsense paying per page views?

Is this correct?
I thought they're only paying per click?
I checked my adsense account yesterday and saw some earnings without a single click.. how is that possible?

 

Yes but the price for page views isn't the greatest. Most people focus on clicks, cause thats where the real money comes from.

 

I see.. do they always do this? because most of the time, i dont see any earnings on my adsense with only page impressions..

 

If someone is site targeting your site yes. You can opt out of CPM if you contact them.

 

The pay is so low, that its not even a penny, therefore you do not see any earnings. Also you need to note the quality of the traffic, U.S., Canada, and the UK generally give more pay for the clicks and views. There are also several other factors, but thats what you really need to understand.