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

Geopolitics is the key to understanding important aspects of international relations.

Earth science is an important field of study for unraveling the mysteries of nature.

He has a deep interest in toponymy.

He is interested in toponymy.

He is writing a thesis on geomorphology.

Also, he solved the problem.

He picked up the forged blade.

This year is my unlucky year, so I need to be especially careful.

There is a large zelkova tree in this park.