Found in NC

Trying to sort my teeth and the book I'm using doesn't have great photos for the crow sharks... Are all of these pictured at least some kind of crow shark? And if so are they all a singular species? Mainly looking for advice on how to identify them too. I tried to group them by feature and kind of failed, so sorry if they're a mess.

The last picture I have no idea, I'm thinking bottom left is a bull shark.

First day in Manasota Key, FL! Lots of broken ones but still a good first haul.

I have a question. My son loves everything shark (and me as his mom must admit i find them fascinating aswell lol) and he loves finding stuff and digging searching. So when I started to see how many shark teeth are found in different places it made me wonder because we live 15 minutes from the beach but on the other side of the world from America if we also have a chance of finding shark teeth on our beaches.

We live in ijmuiden the netherlands and we have 2 beaches close by and another one in Zandvoort the netherlands that we could go to with a short train ride.

Is there any chance we could find anything on our beaches? I'm assuming that it won't be as much as on other beaches but I want to know if there is any chance at all before I get my son's hopes up.

You all seems like a nice and very knowledgeable group of people so I figured this was the best place to get a good answer.

Thanks for any help.

Best regards a mom that want to surprise her son with a cool trip!

Edit : spelling

Found recently! Anyone have an ID?

I bought some bulk shark teeth and it says its Moroccan scrap which upon research is just cuz some phosphate mining in the area unearths a lot of sandshark/mackerel shark teeth etc...which is cool.

The ones I found had a lot of broken parts but a few full teeth which was exciting (I tragically dont live in an area where I can easily hunt for my own).

This one tooth is missing its roots but it looks different than the others which are all easily grouped in a few different shapes sizes and colour's. Just wondering what type of shark it could be from? I was looking at pictures of fossilized teeth for species this type of thing normally has and I could match most of them fairly confidently but not this one. Lego just for scale