$A$ : Tyrannosaurus rex had fearsome dagger like teeth.
$R$ : Tyrannosaurus was largest dinosaur depending upon herbs and shrubs.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
The dinosaurs were maximum during the period of
The Permian period, during which the first most modern orders of insects appeared, occurred approximately
Which of the following arrangement of periods of the mesozoic era gives a correct sequence from the earliest to the latest?
Origin of mammal-like reptiles occurred in