Question

For how many years have the dinosaurs been extinct?

(a) About 25 million years 

(b) About 65 million years

(c) About 70 million years 

(d) About 80 million years

Answer 1

(b) About 65 million years

Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years.