Are all Ads on our site worth to stay

unrelated domain on my niche but have related url

[digic]

Just want to know if all the items in "Ads by google: are worth to stay on my site, are they all generating revenue if clicked?

I have found some seacrhsite but was tagged as related to my site. Example my site is about apple. There is an ads about "apple store" but when I view its main domain, it is a search site.

Well I dont care whatever site is it as long as I am earnings when clicked on that ads. Should I filter them?

Thanks

[digic]

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