He formed a new team.

A volcanic eruption makes you feel the power of nature.

He received the letter challenging him to a duel and began preparing for the duel.

Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

Geomorphology is the science that studies the surface shape of the earth.

He is writing a thesis on geomorphology.

It is important to understand the importance of health.

There are a lot of old furniture in the storage room.

She decided to undergo facial reconstructive surgery.