This is the most beautiful flower.

Where does the Mesoproterozoic era fit in the history of the Earth?

The Proterozoic eon is the longest era in the history of the Earth.

Living in this age is very exciting.

Earth is one of the planets in the solar system.

He is interested in history.

His hair is very long.

The Mesolithic is the era between the Paleolithic and the Neolithic.

He was able to grow into a fine adult.

His strong point is his sincerity.