He feels responsible as the head of the family.

He is the lord of this region.

What are you doing?

This beautiful serpentine necklace is a gift from my mother.

Geology is a study that elucidates the history of the Earth.

He is a world-renowned geologist.

He is majoring in geology.

All members of our team are experts.

Constructivism is an educational theory that knowledge is actively constructed by each learner.

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