Epistemology comes from Greek “episteme” meaning knowledge.... do the answer is epistemology
Good luck! Hope this is right and helped!!
I see another blank but don’t see a number to fulfill it so if you could tell me where to look I would be more than happy to help ;)
hope this helps
I do think that they close to not allow too much of either water or air from entering.
the hollow tube allows water to flow easily.
https://www.bbc.co.uk/bitesize/guides/z28g7p3/revision/1
