Yes - they have barely changed from their prehistoric ancestors.
There were no cities millions of years ago.
yes it did
The water cycle
false because the earth contients was together now it is spreaded?
Given that matter can neither be created nor destroyed, it follows that there are the same number of iron atoms now as there ever were.
Carbon is a building block of all life and is an element that naturally occurs on this planet. There is the same volume of carbon on the planet today as their was millions of years ago.
the atoms have a cycyle
No.
Technically, no. Crocodiles are bigger.
Prehistoric crocodile, no. But besides size, modern-day crocodilians (crocodiles and alligators) are almost the same.
no
no. fishes are classified as Pisces and crocodiles are classified as reptiles