Question

what is dinosaur
need explain​

Answer 1

Answer:

➡Dinosaurs are a group of reptiles that dominated the land for over 140 million years (more than 160 million years in some parts of the world). They evolved diverse shapes and sizes, from the fearsome giant Spinosaurus to the chicken-sized Microraptor, and were able to survive in a variety of ecosystems.

➡Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.

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Answer 2

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$\implies$ Dinosaurs were gaint scaly reptiles, some with feathers, that lived on land. They shared there world with many other kind of giant reptile that were not Dinosaurs, for example, flying reptiles such as pterosaurs and marine reptiles such as plesiosaurs.

$\implies$Prehistoric reptiles called the Dinosaurs walked the Earth for 180 million years, long before humans were around. Scientists are able to tell how did dinosaurs lived by studying there remains, preserved in rock as fossils.

$\implies$ the longest and the heaviest dinosaur discovered to date is Argentinosaurs. It was the length of four fire engines and would have weighed as much as 17 African elephants.

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