Scandium is a rare element that exists in very small amounts in the earth's crust.

He makes it a point to drink a small amount of water every day.

This scarce mineral is very expensive.

Earthquakes are caused by the movement of the crust.

His existence enriches my life.

You can feel his presence.

I was amazed at his extraordinary talent.

Please press this button in case of emergency.

It is a very beautiful view.

Hydrogen is the most abundant element in the universe.