With the following text just bellow the search box.
> Carbon monoxide (chemical formula CO) is a colorless, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom. It is the simplest molecule of the oxocarbon family.
Odd I don't see that. I am told "People also ask" about five different questions that each of them amount to "what is carbon monoxide poisoning", which replicate the results of the search itself.
the fact other search engines get this right, even if not nearly as well as Google would have in 2008, tells me the problem is not advertising or a contentless web as much as Google specifically and deliberately preventing you from searching about what you mean.
With the following text just bellow the search box.
> Carbon monoxide (chemical formula CO) is a colorless, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom. It is the simplest molecule of the oxocarbon family.