According to most scientists, we have had virtually the same amount of water on Earth since the planet formed. That would mean that there was the same amount of water on Earth when the dinosaurs existed.
However, it is important to note that there is probably an infinitesimal amount more water now then there was in the time of the dinosaurs, simply because of the fact that there have been meteors/meteorites that carried a little bit of water to Earth since the dinosaurs died out.
yes
Yes
No dinosaurs specifically lived in the water. Plesiosaurs, pliosaurs, mosasaurs and ichthyosaurs lived in the water (but are not DINOSAURS). They are reptiles but not dinosaurs. They co-inhabited the planet with dinosaurs, in the same way that the pterosaurs ruled the air. Pterosaurs were not dinosaurs either.
In all likelihood, probably. The water cycle would make sure that all the water on the Earth would be used, evaporated, and then sent down into the Earth over time. The amounts of water may have changed slightly over time, but the relative amount of water hasn't changed much at all, just the water placement and it's distribution.
no, there was only sand
h2o
water on the earth remains constant.man :)
water on the earth remains constant.man :)
water on the earth remains constant.man :)
No, they're all dead. Humans and dinosaurs never met. The dinosaurs died millions of years before humans existed. While they were alive, the larger dinosaurs would certainly have drunk more water than humans, because their large size requires more water. While smaller dinosaurs drunk less.
Of course Yes I hope it helped. xD
the same amount of water we have today... (70%)
Yes - the Earth has a finite amount of water on it. This water cycles between the oceans and the atmosphere.