WWB5L3R

Dinosaurs first appeared over 200 million years ago and died out 65 million years ago, That is a(n) (a)   of about 135 million years.

The world of the dinosaurs was vastly different from today's world. It is impossible to (a)   what is would have been like to live in those times.

The world a that time was a savage one of hunters and hunted. (a)   creatures would have stood no chance in such a world.

Dinosaur skeletons are found buried in rock. It is (a)   that the bones and the rock are about the same age.

Most creatures living tens of millions of years ago left no trace behind. Only a smaller number happened to be (a)   in rocks for us to discover.

A twenty-foot long Utahraptor may seem large, but it looks small when compared with the (a)   Tyrannosaurus Rex, measured fifty feet.

Its ten-inch claws and huge, sharp teeth give Tyrannosaurus Rex a scary look. It is probably the most (a)   looking of all the dinosaurs.

Dinosaur teeth tell scientist what kind of creature the teeth belonged to. They show whether the creature was plant - eating or (a)   .

The largest of all dinosaurs ate only plants. They were not equipped to fight and were the natural (a)   of meat-eaters such as Tyrannosaurs Rex.

Did a meteorite hitting the earth cause the dinosaurs to die out? Scientists who once thought this explanation (a)   now believe it to be correct.