I agree 100% on space -and still people will say exactly the same thing about space science as you say about dinosaurs.
I believe the tectonic plates thing is about where dinosaurs were found, why they migrated, how, and when. But this is more advanced then what I have knowledge of.
"Paleontology is highly relevant to the modern and future world.
We can learn how climate change has effected past organisms as well as how organisms have changed the physical world. We can also better understand the principles of extinction, evolutionary change, and biodiversity."
And I think it is important to point out that paleontologists don't just study dinosaurs -
"What is the point of paleontology?
Paleontology is
the study of the history of life on Earth as based on fossils. Fossils are the remains of plants, animals, fungi, bacteria, and single-celled living things that have been replaced by rock material or impressions of organisms preserved in rock."
Edit: You have some good questions though, and if I was you, I would ask them to someone who knows about the subject - like here
https://www.reddit.com/r/Paleontology/