The Silurian period is one of the geological eras.

The geology of this area is very unique.

He ate one apple.

Living in this age is very exciting.

Mr. Nishi is my best friend.

The laws of this country respect the 'rules' from ancient times.

This story depicts the adventures of Nori.

We are aiming for a society where all people can enjoy welfare.

He is a world-renowned geologist.

He is majoring in geology.