Strontium is one of the elements abundantly present in the earth's crust.

A tram is running down the street.

The Stegosaurus was a type of dinosaur that had large plate-like bones on its back and spikes on its tail.

The Stegosaurus was a type of dinosaur that had large plate-like bones on its back and spikes on its tail.

I want to become a superhero.

I go shopping at the supermarket every Saturday.

Lithium aluminium hydride is necessary for this chemical reaction.

He is a world-renowned biologist.

We don't need to reinvent the wheel.

Sputnik is the first artificial satellite.